64164188990232 has 72 divisors (see below), whose sum is σ = 179564584757220. Its totient is φ = 20698125458400.

The previous prime is 64164188990141. The next prime is 64164188990243. The reversal of 64164188990232 is 23209988146146.

64164188990232 is a `hidden beast` number, since 6 + 416 + 4 + 188 + 9 + 9 + 0 + 2 + 32 = 666.

64164188990232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 64164188990232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 463598494 + ... + 463736877.

Almost surely, 2^{64164188990232} is an apocalyptic number.

64164188990232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64164188990232 is an abundant number, since it is smaller than the sum of its proper divisors (115400395766988).

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

64164188990232 is a wasteful number, since it uses less digits than its factorization.

64164188990232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927335445 (or 927335407 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 64164188990232 in words is "sixty-four trillion, one hundred sixty-four billion, one hundred eighty-eight million, nine hundred ninety thousand, two hundred thirty-two".