204442515099 has 12 divisors (see below), whose sum is σ = 296835939816. Its totient is φ = 135588817152.

The previous prime is 204442515089. The next prime is 204442515113. The reversal of 204442515099 is 990515244402.

204442515099 is a `hidden beast` number, since 2 + 0 + 4 + 4 + 42 + 515 + 0 + 99 = 666.

It is not a de Polignac number, because 204442515099 - 2²⁵ = 204408960667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204442515089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58847577 + ... + 58851050.

It is an arithmetic number, because the mean of its divisors is an integer number (24736328318).

Almost surely, 2^204442515099 is an apocalyptic number.

204442515099 is a deficient number, since it is larger than the sum of its proper divisors (92393424717).

204442515099 is a wasteful number, since it uses less digits than its factorization.

204442515099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117698826 (or 117698823 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 204442515099 in words is "two hundred four billion, four hundred forty-two million, five hundred fifteen thousand, ninety-nine".