115566655665615 has 192 divisors, whose sum is σ = 234829059268608. Its totient is φ = 47501176504320.

The previous prime is 115566655665577. The next prime is 115566655665647. The reversal of 115566655665615 is 516566556665511.

It is not a de Polignac number, because 115566655665615 - 2⁶ = 115566655665551 is a prime.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 115566655665615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1913863714 + ... + 1913924096.

It is an arithmetic number, because the mean of its divisors is an integer number (1223068017024).

Almost surely, 2^{115566655665615} is an apocalyptic number.

115566655665615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115566655665615 is an abundant number, since it is smaller than the sum of its proper divisors (119262403602993).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115566655665615 is a wasteful number, since it uses less digits than its factorization.

115566655665615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62070 (or 62059 counting only the distinct ones).

The product of its digits is 729000000, while the sum is 69.

The spelling of 115566655665615 in words is "one hundred fifteen trillion, five hundred sixty-six billion, six hundred fifty-five million, six hundred sixty-five thousand, six hundred fifteen".