204025642051 has 12 divisors (see below), whose sum is σ = 256296675376. Its totient is φ = 158981019120.

The previous prime is 204025642033. The next prime is 204025642063. The reversal of 204025642051 is 150246520402.

It is not a de Polignac number, because 204025642051 - 2²³ = 204017253443 is a prime.

It is a super-2 number, since 2×204025642051² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204025642021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120439320 + ... + 120441013.

Almost surely, 2^204025642051 is an apocalyptic number.

204025642051 is a deficient number, since it is larger than the sum of its proper divisors (52271033325).

204025642051 is a wasteful number, since it uses less digits than its factorization.

204025642051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240880362 (or 240880351 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 204025642051 in words is "two hundred four billion, twenty-five million, six hundred forty-two thousand, fifty-one".