118157756815 has 8 divisors (see below), whose sum is σ = 162044923680. Its totient is φ = 81022461792.

The previous prime is 118157756813. The next prime is 118157756831. The reversal of 118157756815 is 518657751811.

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 118157756815 - 2¹ = 118157756813 is a prime.

It is a super-2 number, since 2×118157756815² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118157756813) 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, 1687967920 + ... + 1687967989.

It is an arithmetic number, because the mean of its divisors is an integer number (20255615460).

Almost surely, 2^118157756815 is an apocalyptic number.

118157756815 is a deficient number, since it is larger than the sum of its proper divisors (43887166865).

118157756815 is an equidigital number, since it uses as much as digits as its factorization.

118157756815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375935921.

The product of its digits is 2352000, while the sum is 55.

The spelling of 118157756815 in words is "one hundred eighteen billion, one hundred fifty-seven million, seven hundred fifty-six thousand, eight hundred fifteen".