16164605056 has 16 divisors (see below), whose sum is σ = 32202924390. Its totient is φ = 8082302464.

The previous prime is 16164605033. The next prime is 16164605059. The reversal of 16164605056 is 65050646161.

It can be written as a sum of positive squares in only one way, i.e., 15821614656 + 342990400 = 125784^2 + 18520^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×16164605056² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16164605059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63142861 + ... + 63143116.

Almost surely, 2^16164605056 is an apocalyptic number.

16164605056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16164605056 is a deficient number, since it is larger than the sum of its proper divisors (16038319334).

16164605056 is an equidigital number, since it uses as much as digits as its factorization.

16164605056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126285991 (or 126285979 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 16164605056 in words is "sixteen billion, one hundred sixty-four million, six hundred five thousand, fifty-six".