16204004064 has 36 divisors (see below), whose sum is σ = 46080137376. Its totient is φ = 5401334592.

The previous prime is 16204004059. The next prime is 16204004081. The reversal of 16204004064 is 46040040261.

16204004064 is a `hidden beast` number, since 162 + 0 + 400 + 40 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×16204004064² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28131664 + ... + 28132239.

It is an arithmetic number, because the mean of its divisors is an integer number (1280003816).

Almost surely, 2^16204004064 is an apocalyptic number.

It is an amenable number.

16204004064 is an abundant number, since it is smaller than the sum of its proper divisors (29876133312).

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

16204004064 is a wasteful number, since it uses less digits than its factorization.

16204004064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56263919 (or 56263908 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 16204004064 in words is "sixteen billion, two hundred four million, four thousand, sixty-four".