118231390856 has 8 divisors (see below), whose sum is σ = 221683857870. Its totient is φ = 59115695424.

The previous prime is 118231390841. The next prime is 118231390873. The reversal of 118231390856 is 658093132811.

It can be written as a sum of positive squares in only one way, i.e., 102572872900 + 15658517956 = 320270^2 + 125134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 118231390856.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7389461921 + ... + 7389461936.

Almost surely, 2^118231390856 is an apocalyptic number.

It is an amenable number.

118231390856 is a deficient number, since it is larger than the sum of its proper divisors (103452467014).

118231390856 is a wasteful number, since it uses less digits than its factorization.

118231390856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14778923863 (or 14778923859 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 118231390856 in words is "one hundred eighteen billion, two hundred thirty-one million, three hundred ninety thousand, eight hundred fifty-six".