51116055660 has 36 divisors (see below), whose sum is σ = 155052036048. Its totient is φ = 13630948128.

The previous prime is 51116055649. The next prime is 51116055671. The reversal of 51116055660 is 6655061115.

51116055660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51116055649) and next prime (51116055671).

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

It is a super-2 number, since 2×51116055660² (a number of 22 digits) contains 22 as substring.

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, 141988864 + ... + 141989223.

Almost surely, 2^51116055660 is an apocalyptic number.

It is an amenable number.

51116055660 is an abundant number, since it is smaller than the sum of its proper divisors (103935980388).

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

51116055660 is a wasteful number, since it uses less digits than its factorization.

51116055660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283978102 (or 283978097 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 51116055660 in words is "fifty-one billion, one hundred sixteen million, fifty-five thousand, six hundred sixty".