204125254002120 has 64 divisors (see below), whose sum is σ = 668046285829440. Its totient is φ = 49484910060800.

The previous prime is 204125254002013. The next prime is 204125254002199. The reversal of 204125254002120 is 21200452521402.

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 15 ways as a sum of consecutive naturals, for example, 77320170651 + ... + 77320173290.

It is an arithmetic number, because the mean of its divisors is an integer number (10438223216085).

Almost surely, 2^{204125254002120} is an apocalyptic number.

204125254002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204125254002120 is an abundant number, since it is smaller than the sum of its proper divisors (463921031827320).

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

204125254002120 is a wasteful number, since it uses less digits than its factorization.

204125254002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154640343966 (or 154640343962 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 204125254002120 in words is "two hundred four trillion, one hundred twenty-five billion, two hundred fifty-four million, two thousand, one hundred twenty".