51112237155660 has 96 divisors (see below), whose sum is σ = 159021940029120. Its totient is φ = 13629407814144.

The previous prime is 51112237155643. The next prime is 51112237155689. The reversal of 51112237155660 is 6655173221115.

51112237155660 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 2 + 2 + 37 + 1 + 556 + 60 = 666.

It is a super-2 number, since 2×51112237155660² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 12400702 + ... + 16000058.

It is an arithmetic number, because the mean of its divisors is an integer number (1656478541970).

Almost surely, 2^{51112237155660} is an apocalyptic number.

It is an amenable number.

51112237155660 is an abundant number, since it is smaller than the sum of its proper divisors (107909702873460).

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

51112237155660 is a wasteful number, since it uses less digits than its factorization.

51112237155660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625672 (or 3625664 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 51112237155660 in words is "fifty-one trillion, one hundred twelve billion, two hundred thirty-seven million, one hundred fifty-five thousand, six hundred sixty".