51570622116 has 36 divisors (see below), whose sum is σ = 140386694812. Its totient is φ = 15867883584.

The previous prime is 51570622109. The next prime is 51570622139. The reversal of 51570622116 is 61122607515.

51570622116 is a `hidden beast` number, since 5 + 1 + 570 + 62 + 21 + 1 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30979520100 + 20591102016 = 176010^2 + 143496^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55096351 + ... + 55097286.

Almost surely, 2^51570622116 is an apocalyptic number.

It is an amenable number.

51570622116 is an abundant number, since it is smaller than the sum of its proper divisors (88816072696).

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

51570622116 is a wasteful number, since it uses less digits than its factorization.

51570622116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110193660 (or 110193655 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 51570622116 in words is "fifty-one billion, five hundred seventy million, six hundred twenty-two thousand, one hundred sixteen".