51010155156 has 24 divisors (see below), whose sum is σ = 122863170304. Its totient is φ = 16454888640.

The previous prime is 51010155151. The next prime is 51010155167. The reversal of 51010155156 is 65155101015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010155151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68561665 + ... + 68562408.

Almost surely, 2^51010155156 is an apocalyptic number.

It is an amenable number.

51010155156 is an abundant number, since it is smaller than the sum of its proper divisors (71853015148).

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

51010155156 is a wasteful number, since it uses less digits than its factorization.

51010155156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137124111 (or 137124109 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 51010155156 in words is "fifty-one billion, ten million, one hundred fifty-five thousand, one hundred fifty-six".