204621521465112 has 64 divisors (see below), whose sum is σ = 518780661638400. Its totient is φ = 67243673777280.

The previous prime is 204621521465107. The next prime is 204621521465189. The reversal of 204621521465112 is 211564125126402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38081314 + ... + 43121102.

It is an arithmetic number, because the mean of its divisors is an integer number (8105947838100).

Almost surely, 2^{204621521465112} is an apocalyptic number.

It is an amenable number.

204621521465112 is an abundant number, since it is smaller than the sum of its proper divisors (314159140173288).

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

204621521465112 is a wasteful number, since it uses less digits than its factorization.

204621521465112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063696 (or 5063692 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 204621521465112 in words is "two hundred four trillion, six hundred twenty-one billion, five hundred twenty-one million, four hundred sixty-five thousand, one hundred twelve".