204520355130 has 64 divisors (see below), whose sum is σ = 604121672448. Its totient is φ = 43151546880.

The previous prime is 204520355129. The next prime is 204520355153. The reversal of 204520355130 is 31553025402.

It is a super-3 number, since 3×204520355130³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37455211 + ... + 37460670.

It is an arithmetic number, because the mean of its divisors is an integer number (9439401132).

Almost surely, 2^204520355130 is an apocalyptic number.

204520355130 is an abundant number, since it is smaller than the sum of its proper divisors (399601317318).

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

204520355130 is a wasteful number, since it uses less digits than its factorization.

204520355130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74915911.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 204520355130 in words is "two hundred four billion, five hundred twenty million, three hundred fifty-five thousand, one hundred thirty".