816107157536 has 48 divisors (see below), whose sum is σ = 1782483706080. Its totient is φ = 364670369280.

The previous prime is 816107157469. The next prime is 816107157559. The reversal of 816107157536 is 635751701618.

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, 19627421 + ... + 19668956.

It is an arithmetic number, because the mean of its divisors is an integer number (37135077210).

Almost surely, 2^816107157536 is an apocalyptic number.

It is an amenable number.

816107157536 is an abundant number, since it is smaller than the sum of its proper divisors (966376548544).

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

816107157536 is a wasteful number, since it uses less digits than its factorization.

816107157536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39296457 (or 39296449 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 816107157536 in words is "eight hundred sixteen billion, one hundred seven million, one hundred fifty-seven thousand, five hundred thirty-six".