51236533362216 has 32 divisors (see below), whose sum is σ = 128097533712960. Its totient is φ = 17078017746432.

The previous prime is 51236533362191. The next prime is 51236533362233. The reversal of 51236533362216 is 61226333563215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51162985 + ... + 52154808.

It is an arithmetic number, because the mean of its divisors is an integer number (4003047928530).

Almost surely, 2^{51236533362216} is an apocalyptic number.

It is an amenable number.

51236533362216 is an abundant number, since it is smaller than the sum of its proper divisors (76861000350744).

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

51236533362216 is a wasteful number, since it uses less digits than its factorization.

51236533362216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103338465 (or 103338461 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 48.

The spelling of 51236533362216 in words is "fifty-one trillion, two hundred thirty-six billion, five hundred thirty-three million, three hundred sixty-two thousand, two hundred sixteen".