115551041961599 has 16 divisors (see below), whose sum is σ = 120977765637120. Its totient is φ = 110220510123360.

The previous prime is 115551041961587. The next prime is 115551041961637. The reversal of 115551041961599 is 995169140155511.

It is a cyclic number.

It is not a de Polignac number, because 115551041961599 - 2⁸ = 115551041961343 is a prime.

It is a super-2 number, since 2×115551041961599² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551041961529) 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, 156778154 + ... + 157513464.

It is an arithmetic number, because the mean of its divisors is an integer number (7561110352320).

Almost surely, 2^{115551041961599} is an apocalyptic number.

115551041961599 is a deficient number, since it is larger than the sum of its proper divisors (5426723675521).

115551041961599 is an equidigital number, since it uses as much as digits as its factorization.

115551041961599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800710.

The product of its (nonzero) digits is 10935000, while the sum is 62.

The spelling of 115551041961599 in words is "one hundred fifteen trillion, five hundred fifty-one billion, forty-one million, nine hundred sixty-one thousand, five hundred ninety-nine".