12117621160663 has 4 divisors (see below), whose sum is σ = 12120867245608. Its totient is φ = 12114375075720.

The previous prime is 12117621160657. The next prime is 12117621160669. The reversal of 12117621160663 is 36606112671121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12117621160657) and next prime (12117621160669).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12117621160663 is a prime.

It is a super-2 number, since 2×12117621160663² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117621160669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623036873 + ... + 1623044338.

It is an arithmetic number, because the mean of its divisors is an integer number (3030216811402).

Almost surely, 2^{12117621160663} is an apocalyptic number.

12117621160663 is a deficient number, since it is larger than the sum of its proper divisors (3246084945).

12117621160663 is an equidigital number, since it uses as much as digits as its factorization.

12117621160663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246084944.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 12117621160663 in words is "twelve trillion, one hundred seventeen billion, six hundred twenty-one million, one hundred sixty thousand, six hundred sixty-three".