118384647655 has 16 divisors (see below), whose sum is σ = 142466467680. Its totient is φ = 94438156288.

The previous prime is 118384647653. The next prime is 118384647679. The reversal of 118384647655 is 556746483811.

It is a cyclic number.

It is not a de Polignac number, because 118384647655 - 2¹ = 118384647653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118384647655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118384647653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2660631 + ... + 2704759.

It is an arithmetic number, because the mean of its divisors is an integer number (8904154230).

Almost surely, 2^118384647655 is an apocalyptic number.

118384647655 is a deficient number, since it is larger than the sum of its proper divisors (24081820025).

118384647655 is an equidigital number, since it uses as much as digits as its factorization.

118384647655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45650.

The product of its digits is 19353600, while the sum is 58.

The spelling of 118384647655 in words is "one hundred eighteen billion, three hundred eighty-four million, six hundred forty-seven thousand, six hundred fifty-five".