118637155966 has 16 divisors (see below), whose sum is σ = 203382576000. Its totient is φ = 50843346840.

The previous prime is 118637155963. The next prime is 118637155981. The reversal of 118637155966 is 669551736811.

It is a self number, because there is not a number n which added to its sum of digits gives 118637155966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118637155963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912021 + ... + 1033951.

It is an arithmetic number, because the mean of its divisors is an integer number (12711411000).

Almost surely, 2^118637155966 is an apocalyptic number.

118637155966 is a deficient number, since it is larger than the sum of its proper divisors (84745420034).

118637155966 is a wasteful number, since it uses less digits than its factorization.

118637155966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191439.

The product of its digits is 8164800, while the sum is 58.

The spelling of 118637155966 in words is "one hundred eighteen billion, six hundred thirty-seven million, one hundred fifty-five thousand, nine hundred sixty-six".