115320431646 has 32 divisors (see below), whose sum is σ = 292877287680. Its totient is φ = 32948694648.

The previous prime is 115320431593. The next prime is 115320431671. The reversal of 115320431646 is 646134023511.

115320431646 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 2 + 0 + 4 + 3 + 1 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 115320431646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152539876 + ... + 152540631.

It is an arithmetic number, because the mean of its divisors is an integer number (9152415240).

Almost surely, 2^115320431646 is an apocalyptic number.

115320431646 is an abundant number, since it is smaller than the sum of its proper divisors (177556856034).

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

115320431646 is a wasteful number, since it uses less digits than its factorization.

115320431646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305080525 (or 305080519 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 115320431646 in words is "one hundred fifteen billion, three hundred twenty million, four hundred thirty-one thousand, six hundred forty-six".