16161604204 has 6 divisors (see below), whose sum is σ = 28282807364. Its totient is φ = 8080802100.

The previous prime is 16161604187. The next prime is 16161604241. The reversal of 16161604204 is 40240616161.

It is a super-2 number, since 2×16161604204² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020200522 + ... + 2020200529.

Almost surely, 2^16161604204 is an apocalyptic number.

It is an amenable number.

16161604204 is a deficient number, since it is larger than the sum of its proper divisors (12121203160).

16161604204 is a wasteful number, since it uses less digits than its factorization.

16161604204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040401055 (or 4040401053 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 16161604204 in words is "sixteen billion, one hundred sixty-one million, six hundred four thousand, two hundred four".