204180457086 has 24 divisors (see below), whose sum is σ = 443270514960. Its totient is φ = 67924840896.

The previous prime is 204180457073. The next prime is 204180457087. The reversal of 204180457086 is 680754081402.

204180457086 is a `hidden beast` number, since 2 + 0 + 41 + 80 + 457 + 0 + 86 = 666.

It is a super-2 number, since 2×204180457086² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204180457087) 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, 11266651 + ... + 11284758.

It is an arithmetic number, because the mean of its divisors is an integer number (18469604790).

Almost surely, 2^204180457086 is an apocalyptic number.

204180457086 is an abundant number, since it is smaller than the sum of its proper divisors (239090057874).

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

204180457086 is a wasteful number, since it uses less digits than its factorization.

204180457086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22551920 (or 22551917 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 204180457086 in words is "two hundred four billion, one hundred eighty million, four hundred fifty-seven thousand, eighty-six".