51151002156 has 18 divisors (see below), whose sum is σ = 129298366652. Its totient is φ = 17050334040.

The previous prime is 51151002073. The next prime is 51151002173. The reversal of 51151002156 is 65120015115.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710430550 + ... + 710430621.

Almost surely, 2^51151002156 is an apocalyptic number.

It is an amenable number.

51151002156 is an abundant number, since it is smaller than the sum of its proper divisors (78147364496).

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

51151002156 is a wasteful number, since it uses less digits than its factorization.

51151002156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420861181 (or 1420861176 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 51151002156 in words is "fifty-one billion, one hundred fifty-one million, two thousand, one hundred fifty-six".