164664031275 has 60 divisors (see below), whose sum is σ = 306202502232. Its totient is φ = 87478824960.

The previous prime is 164664031267. The next prime is 164664031327. The reversal of 164664031275 is 572130466461.

164664031275 is a `hidden beast` number, since 1 + 64 + 66 + 403 + 127 + 5 = 666.

It is not a de Polignac number, because 164664031275 - 2³ = 164664031267 is a prime.

It is a super-2 number, since 2×164664031275² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 164664031275.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 362224 + ... + 678626.

Almost surely, 2^164664031275 is an apocalyptic number.

164664031275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164664031275 is a deficient number, since it is larger than the sum of its proper divisors (141538470957).

164664031275 is a wasteful number, since it uses less digits than its factorization.

164664031275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316682 (or 316668 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 164664031275 in words is "one hundred sixty-four billion, six hundred sixty-four million, thirty-one thousand, two hundred seventy-five".