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66634130202 = 2311105688367
BaseRepresentation
bin111110000011101101…
…000010001100011010
320100222211212112112020
4332003231002030122
52042431314131302
650340012355310
74546153522113
oct760355021432
9210884775466
1066634130202
11262942582a2
1210ab7775b36
13638c011713
1433219b120a
151aeed9aebc
hexf83b4231a

66634130202 has 8 divisors (see below), whose sum is σ = 133268260416. Its totient is φ = 22211376732.

The previous prime is 66634130141. The next prime is 66634130207. The reversal of 66634130202 is 20203143666.

It is a sphenic number, since it is the product of 3 distinct primes.

66634130202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (66634130207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552844178 + ... + 5552844189.

It is an arithmetic number, because the mean of its divisors is an integer number (16658532552).

Almost surely, 266634130202 is an apocalyptic number.

66634130202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66634130202 is a wasteful number, since it uses less digits than its factorization.

66634130202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105688372.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 66634130202 its reverse (20203143666), we get a palindrome (86837273868).

The spelling of 66634130202 in words is "sixty-six billion, six hundred thirty-four million, one hundred thirty thousand, two hundred two".

Divisors: 1 2 3 6 11105688367 22211376734 33317065101 66634130202