16164605057 has 8 divisors (see below), whose sum is σ = 17117021736. Its totient is φ = 15212361472.

The previous prime is 16164605033. The next prime is 16164605059. The reversal of 16164605057 is 75050646161.

It can be written as a sum of positive squares in 4 ways, for example, as 4961652721 + 11202952336 = 70439^2 + 105844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16164605057 - 2⁶ = 16164604993 is a prime.

It is a super-2 number, since 2×16164605057² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 182783 + ... + 256395.

It is an arithmetic number, because the mean of its divisors is an integer number (2139627717).

Almost surely, 2^16164605057 is an apocalyptic number.

16164605057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16164605057 is a deficient number, since it is larger than the sum of its proper divisors (952416679).

16164605057 is a wasteful number, since it uses less digits than its factorization.

16164605057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86547.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 16164605057 in words is "sixteen billion, one hundred sixty-four million, six hundred five thousand, fifty-seven".