1516801831656 has 16 divisors (see below), whose sum is σ = 3792004579200. Its totient is φ = 505600610544.

The previous prime is 1516801831651. The next prime is 1516801831679. The reversal of 1516801831656 is 6561381086151.

It is a junction number, because it is equal to n+sod(n) for n = 1516801831599 and 1516801831608.

It is not an unprimeable number, because it can be changed into a prime (1516801831651) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31600038136 + ... + 31600038183.

It is an arithmetic number, because the mean of its divisors is an integer number (237000286200).

Almost surely, 2^{1516801831656} is an apocalyptic number.

It is an amenable number.

1516801831656 is an abundant number, since it is smaller than the sum of its proper divisors (2275202747544).

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

1516801831656 is a wasteful number, since it uses less digits than its factorization.

1516801831656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63200076328 (or 63200076324 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 1516801831656 in words is "one trillion, five hundred sixteen billion, eight hundred one million, eight hundred thirty-one thousand, six hundred fifty-six".