115621364540 has 48 divisors (see below), whose sum is σ = 269875761120. Its totient is φ = 41250842880.

The previous prime is 115621364519. The next prime is 115621364567. The reversal of 115621364540 is 45463126511.

It is a junction number, because it is equal to n+sod(n) for n = 115621364494 and 115621364503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4946375 + ... + 4969694.

It is an arithmetic number, because the mean of its divisors is an integer number (5622411690).

Almost surely, 2^115621364540 is an apocalyptic number.

115621364540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115621364540 is an abundant number, since it is smaller than the sum of its proper divisors (154254396580).

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

115621364540 is a wasteful number, since it uses less digits than its factorization.

115621364540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9916142 (or 9916140 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 115621364540 in words is "one hundred fifteen billion, six hundred twenty-one million, three hundred sixty-four thousand, five hundred forty".