51210551660204 has 12 divisors (see below), whose sum is σ = 89618572701504. Its totient is φ = 25605245174064.

The previous prime is 51210551660173. The next prime is 51210551660207. The reversal of 51210551660204 is 40206615501215.

It is not an unprimeable number, because it can be changed into a prime (51210551660207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3674684 + ... + 10766819.

It is an arithmetic number, because the mean of its divisors is an integer number (7468214391792).

Almost surely, 2^{51210551660204} is an apocalyptic number.

It is an amenable number.

51210551660204 is a deficient number, since it is larger than the sum of its proper divisors (38408021041300).

51210551660204 is a wasteful number, since it uses less digits than its factorization.

51210551660204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328024 (or 15328022 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 51210551660204 in words is "fifty-one trillion, two hundred ten billion, five hundred fifty-one million, six hundred sixty thousand, two hundred four".