117568022251 has 4 divisors (see below), whose sum is σ = 117568729792. Its totient is φ = 117567314712.

The previous prime is 117568022239. The next prime is 117568022261. The reversal of 117568022251 is 152220865711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 117568022251 - 2³¹ = 115420538603 is a prime.

It is a super-2 number, since 2×117568022251² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117568022261) 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, 46246 + ... + 487108.

It is an arithmetic number, because the mean of its divisors is an integer number (29392182448).

Almost surely, 2^117568022251 is an apocalyptic number.

117568022251 is a deficient number, since it is larger than the sum of its proper divisors (707541).

117568022251 is an equidigital number, since it uses as much as digits as its factorization.

117568022251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707540.

The product of its (nonzero) digits is 67200, while the sum is 40.

Adding to 117568022251 its reverse (152220865711), we get a palindrome (269788887962).

The spelling of 117568022251 in words is "one hundred seventeen billion, five hundred sixty-eight million, twenty-two thousand, two hundred fifty-one".