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66168162348 = 22317324353737
BaseRepresentation
bin111101100111111011…
…100000100000101100
320022210101001220210120
4331213323200200230
52041003022143343
650221445204540
74531465046211
oct754773404054
9208711056716
1066168162348
11260752257a2
12109a7700750
1363166139b2
1432b9b57b08
151ac4006683
hexf67ee082c

66168162348 has 24 divisors (see below), whose sum is σ = 163474283952. Its totient is φ = 20758639104.

The previous prime is 66168162341. The next prime is 66168162407. The reversal of 66168162348 is 84326186166.

It is a super-2 number, since 2×661681623482 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 66168162348.

It is not an unprimeable number, because it can be changed into a prime (66168162341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162176665 + ... + 162177072.

It is an arithmetic number, because the mean of its divisors is an integer number (6811428498).

Almost surely, 266168162348 is an apocalyptic number.

66168162348 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

66168162348 is an abundant number, since it is smaller than the sum of its proper divisors (97306121604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66168162348 is a wasteful number, since it uses less digits than its factorization.

66168162348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324353761 (or 324353759 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The spelling of 66168162348 in words is "sixty-six billion, one hundred sixty-eight million, one hundred sixty-two thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 324353737 648707474 973061211 1297414948 1946122422 3892244844 5514013529 11028027058 16542040587 22056054116 33084081174 66168162348