164756886464 has 28 divisors (see below), whose sum is σ = 327927221208. Its totient is φ = 82129555200.

The previous prime is 164756886397. The next prime is 164756886467. The reversal of 164756886464 is 464688657461.

It is a super-2 number, since 2×164756886464² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164756886464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164756886467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867527 + ... + 3909894.

Almost surely, 2^164756886464 is an apocalyptic number.

It is an amenable number.

164756886464 is a deficient number, since it is larger than the sum of its proper divisors (163170334744).

164756886464 is an equidigital number, since it uses as much as digits as its factorization.

164756886464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777764 (or 7777754 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 65.

The spelling of 164756886464 in words is "one hundred sixty-four billion, seven hundred fifty-six million, eight hundred eighty-six thousand, four hundred sixty-four".