117250661655 has 48 divisors (see below), whose sum is σ = 207155089440. Its totient is φ = 61328327424.

The previous prime is 117250661653. The next prime is 117250661669. The reversal of 117250661655 is 556166052711.

It is a happy number.

117250661655 is a `hidden beast` number, since 1 + 1 + 7 + 25 + 0 + 6 + 616 + 5 + 5 = 666.

It is not a de Polignac number, because 117250661655 - 2¹ = 117250661653 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 117250661655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117250661653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6642952 + ... + 6660578.

It is an arithmetic number, because the mean of its divisors is an integer number (4315731030).

Almost surely, 2^117250661655 is an apocalyptic number.

117250661655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117250661655 is a deficient number, since it is larger than the sum of its proper divisors (89904427785).

117250661655 is a wasteful number, since it uses less digits than its factorization.

117250661655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20480 (or 20477 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 117250661655 in words is "one hundred seventeen billion, two hundred fifty million, six hundred sixty-one thousand, six hundred fifty-five".