164677225872 has 40 divisors (see below), whose sum is σ = 425430734976. Its totient is φ = 54890528896.

The previous prime is 164677225871. The next prime is 164677225873. The reversal of 164677225872 is 278522776461.

It is an interprime number because it is at equal distance from previous prime (164677225871) and next prime (164677225873).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (164677225871) 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 7 ways as a sum of consecutive naturals, for example, 2574178 + ... + 2637374.

Almost surely, 2^164677225872 is an apocalyptic number.

164677225872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164677225872 is an abundant number, since it is smaller than the sum of its proper divisors (260753509104).

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

164677225872 is a wasteful number, since it uses less digits than its factorization.

164677225872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117495 (or 117489 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 57.

The spelling of 164677225872 in words is "one hundred sixty-four billion, six hundred seventy-seven million, two hundred twenty-five thousand, eight hundred seventy-two".