118787168717761 has 16 divisors (see below), whose sum is σ = 123224759675136. Its totient is φ = 114431975260416.

The previous prime is 118787168717729. The next prime is 118787168717773. The reversal of 118787168717761 is 167717861787811.

It is a cyclic number.

It is not a de Polignac number, because 118787168717761 - 2⁵ = 118787168717729 is a prime.

It is a super-2 number, since 2×118787168717761² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118787168717561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11352136 + ... + 19142761.

It is an arithmetic number, because the mean of its divisors is an integer number (7701547479696).

Almost surely, 2^{118787168717761} is an apocalyptic number.

It is an amenable number.

118787168717761 is a deficient number, since it is larger than the sum of its proper divisors (4437590957375).

118787168717761 is a wasteful number, since it uses less digits than its factorization.

118787168717761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30496248.

The product of its digits is 309786624, while the sum is 76.

The spelling of 118787168717761 in words is "one hundred eighteen trillion, seven hundred eighty-seven billion, one hundred sixty-eight million, seven hundred seventeen thousand, seven hundred sixty-one".