51101515152 has 60 divisors (see below), whose sum is σ = 143082248400. Its totient is φ = 17025622464.

The previous prime is 51101515139. The next prime is 51101515159. The reversal of 51101515152 is 25151510115.

It is a happy number.

51101515152 is a `hidden beast` number, since 511 + 0 + 1 + 51 + 51 + 52 = 666.

It is a super-2 number, since 2×51101515152² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51101515159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217723 + ... + 386789.

It is an arithmetic number, because the mean of its divisors is an integer number (2384704140).

Almost surely, 2^51101515152 is an apocalyptic number.

It is an amenable number.

51101515152 is an abundant number, since it is smaller than the sum of its proper divisors (91980733248).

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

51101515152 is a wasteful number, since it uses less digits than its factorization.

51101515152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171180 (or 171171 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 27.

The spelling of 51101515152 in words is "fifty-one billion, one hundred one million, five hundred fifteen thousand, one hundred fifty-two".