118640541685 has 8 divisors (see below), whose sum is σ = 142370610336. Its totient is φ = 94911126480.

The previous prime is 118640541667. The next prime is 118640541743. The reversal of 118640541685 is 586145046811.

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

It is not a de Polignac number, because 118640541685 - 2⁷ = 118640541557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435982 + ... + 653728.

It is an arithmetic number, because the mean of its divisors is an integer number (17796326292).

Almost surely, 2^118640541685 is an apocalyptic number.

It is an amenable number.

118640541685 is a deficient number, since it is larger than the sum of its proper divisors (23730068651).

118640541685 is a wasteful number, since it uses less digits than its factorization.

118640541685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326723.

The product of its (nonzero) digits is 921600, while the sum is 49.

The spelling of 118640541685 in words is "one hundred eighteen billion, six hundred forty million, five hundred forty-one thousand, six hundred eighty-five".