117755011961 has 4 divisors (see below), whose sum is σ = 117813569424. Its totient is φ = 117696454500.

The previous prime is 117755011949. The next prime is 117755011973. The reversal of 117755011961 is 169110557711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (117755011949) and next prime (117755011973).

It is a cyclic number.

It is not a de Polignac number, because 117755011961 - 2³⁴ = 100575142777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117755011931) 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, 29275715 + ... + 29279736.

It is an arithmetic number, because the mean of its divisors is an integer number (29453392356).

Almost surely, 2^117755011961 is an apocalyptic number.

It is an amenable number.

117755011961 is a deficient number, since it is larger than the sum of its proper divisors (58557463).

117755011961 is an equidigital number, since it uses as much as digits as its factorization.

117755011961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58557462.

The product of its (nonzero) digits is 66150, while the sum is 44.

The spelling of 117755011961 in words is "one hundred seventeen billion, seven hundred fifty-five million, eleven thousand, nine hundred sixty-one".