116511326465553 has 32 divisors (see below), whose sum is σ = 172822492166400. Its totient is φ = 77578319161728.

The previous prime is 116511326465549. The next prime is 116511326465587. The reversal of 116511326465553 is 355564623115611.

116511326465553 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 1 + 1 + 3 + 26 + 4 + 65 + 553 = 666.

It is not a de Polignac number, because 116511326465553 - 2² = 116511326465549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116511326465553.

It is not an unprimeable number, because it can be changed into a prime (116511326465503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1297654300 + ... + 1297744082.

It is an arithmetic number, because the mean of its divisors is an integer number (5400702880200).

Almost surely, 2^{116511326465553} is an apocalyptic number.

It is an amenable number.

116511326465553 is a deficient number, since it is larger than the sum of its proper divisors (56311165700847).

116511326465553 is an equidigital number, since it uses as much as digits as its factorization.

116511326465553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148598 (or 148592 counting only the distinct ones).

The product of its digits is 9720000, while the sum is 54.

The spelling of 116511326465553 in words is "one hundred sixteen trillion, five hundred eleven billion, three hundred twenty-six million, four hundred sixty-five thousand, five hundred fifty-three".