118331194657 has 8 divisors (see below), whose sum is σ = 127591125480. Its totient is φ = 109093768320.

The previous prime is 118331194643. The next prime is 118331194759. The reversal of 118331194657 is 756491133811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28474537536 + 89856657121 = 168744^2 + 299761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 118331194657 - 2⁷ = 118331194529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118331194657.

It is not an unprimeable number, because it can be changed into a prime (118331194057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5615194 + ... + 5636227.

It is an arithmetic number, because the mean of its divisors is an integer number (15948890685).

Almost surely, 2^118331194657 is an apocalyptic number.

It is an amenable number.

118331194657 is a deficient number, since it is larger than the sum of its proper divisors (9259930823).

118331194657 is a wasteful number, since it uses less digits than its factorization.

118331194657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11252243.

The product of its digits is 544320, while the sum is 49.

The spelling of 118331194657 in words is "one hundred eighteen billion, three hundred thirty-one million, one hundred ninety-four thousand, six hundred fifty-seven".