204155516 has 24 divisors (see below), whose sum is σ = 379282176. Its totient is φ = 95820800.

The previous prime is 204155503. The next prime is 204155531. The reversal of 204155516 is 615551402.

It is a happy number.

204155516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23525 + ... + 31011.

It is an arithmetic number, because the mean of its divisors is an integer number (15803424).

Almost surely, 2^204155516 is an apocalyptic number.

It is an amenable number.

204155516 is a deficient number, since it is larger than the sum of its proper divisors (175126660).

204155516 is a wasteful number, since it uses less digits than its factorization.

204155516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909 (or 7907 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 204155516 is about 14288.2999688556. The cubic root of 204155516 is about 588.8260829397.

The spelling of 204155516 in words is "two hundred four million, one hundred fifty-five thousand, five hundred sixteen".