115863644160 has 1344 divisors, whose sum is σ = 487257301440. Its totient is φ = 26117406720.

The previous prime is 115863644159. The next prime is 115863644173. The reversal of 115863644160 is 61446368511.

115863644160 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 636 + 4 + 4 + 1 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1395947479 + ... + 1395947561.

It is an arithmetic number, because the mean of its divisors is an integer number (362542635).

Almost surely, 2^115863644160 is an apocalyptic number.

115863644160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115863644160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243628650720).

115863644160 is an abundant number, since it is smaller than the sum of its proper divisors (371393657280).

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

115863644160 is an equidigital number, since it uses as much as digits as its factorization.

115863644160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

115863644160 divided by its product of nonzero digits (414720) gives a triangular number (279378 = T₇₄₇).

The spelling of 115863644160 in words is "one hundred fifteen billion, eight hundred sixty-three million, six hundred forty-four thousand, one hundred sixty".