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164247970901 = 7183112814853
BaseRepresentation
bin1001100011110111110…
…0010010010001010101
3120200221201112102120112
42120331330102101111
510142334440032101
6203242100012405
714603134501010
oct2307574222125
9520851472515
10164247970901
1163725774613
12279ba391105
1312647370281
147d41b76377
1544148956bb
hex263df12455

164247970901 has 8 divisors (see below), whose sum is σ = 187814500224. Its totient is φ = 140707074960.

The previous prime is 164247970897. The next prime is 164247970949. The reversal of 164247970901 is 109079742461.

164247970901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 164247970901 - 22 = 164247970897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164247970901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164247970301) 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, 6394610 + ... + 6420243.

It is an arithmetic number, because the mean of its divisors is an integer number (23476812528).

Almost surely, 2164247970901 is an apocalyptic number.

It is an amenable number.

164247970901 is a deficient number, since it is larger than the sum of its proper divisors (23566529323).

164247970901 is a wasteful number, since it uses less digits than its factorization.

164247970901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816691.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 164247970901 in words is "one hundred sixty-four billion, two hundred forty-seven million, nine hundred seventy thousand, nine hundred one".

Divisors: 1 7 1831 12817 12814853 89703971 23463995843 164247970901