115556775663672 has 128 divisors (see below), whose sum is σ = 367022525760000. Its totient is φ = 33000415918848.

The previous prime is 115556775663671. The next prime is 115556775663689. The reversal of 115556775663672 is 276366577655511.

115556775663672 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 56 + 7 + 7 + 566 + 3 + 6 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 115556775663672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115556775663671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15134022 + ... + 21451157.

It is an arithmetic number, because the mean of its divisors is an integer number (2867363482500).

Almost surely, 2^{115556775663672} is an apocalyptic number.

115556775663672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115556775663672 is an abundant number, since it is smaller than the sum of its proper divisors (251465750096328).

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

115556775663672 is a wasteful number, since it uses less digits than its factorization.

115556775663672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36587290 (or 36587280 counting only the distinct ones).

The product of its digits is 1666980000, while the sum is 72.

The spelling of 115556775663672 in words is "one hundred fifteen trillion, five hundred fifty-six billion, seven hundred seventy-five million, six hundred sixty-three thousand, six hundred seventy-two".