117565557775 has 6 divisors (see below), whose sum is σ = 145781291672. Its totient is φ = 94052446200.

The previous prime is 117565557773. The next prime is 117565557787. The reversal of 117565557775 is 577755565711.

It is not a de Polignac number, because 117565557775 - 2¹ = 117565557773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117565557773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2351311131 + ... + 2351311180.

Almost surely, 2^117565557775 is an apocalyptic number.

117565557775 is a deficient number, since it is larger than the sum of its proper divisors (28215733897).

117565557775 is an equidigital number, since it uses as much as digits as its factorization.

117565557775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702622321 (or 4702622316 counting only the distinct ones).

The product of its digits is 45018750, while the sum is 61.

The spelling of 117565557775 in words is "one hundred seventeen billion, five hundred sixty-five million, five hundred fifty-seven thousand, seven hundred seventy-five".