117155565506 has 8 divisors (see below), whose sum is σ = 200838112320. Its totient is φ = 50209528068.

The previous prime is 117155565503. The next prime is 117155565539. The reversal of 117155565506 is 605565551711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (117155565503) 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, 4184127326 + ... + 4184127353.

It is an arithmetic number, because the mean of its divisors is an integer number (25104764040).

Almost surely, 2^117155565506 is an apocalyptic number.

117155565506 is a deficient number, since it is larger than the sum of its proper divisors (83682546814).

117155565506 is an equidigital number, since it uses as much as digits as its factorization.

117155565506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368254688.

The product of its (nonzero) digits is 787500, while the sum is 47.

The spelling of 117155565506 in words is "one hundred seventeen billion, one hundred fifty-five million, five hundred sixty-five thousand, five hundred six".