115156516051565 has 16 divisors (see below), whose sum is σ = 141260749797888. Its totient is φ = 90080280377856.

The previous prime is 115156516051553. The next prime is 115156516051579. The reversal of 115156516051565 is 565150615651511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115156516051565 - 2¹⁴ = 115156516035181 is a prime.

It is a super-2 number, since 2×115156516051565² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230243012 + ... + 230742621.

It is an arithmetic number, because the mean of its divisors is an integer number (8828796862368).

Almost surely, 2^{115156516051565} is an apocalyptic number.

It is an amenable number.

115156516051565 is a deficient number, since it is larger than the sum of its proper divisors (26104233746323).

115156516051565 is a wasteful number, since it uses less digits than its factorization.

115156516051565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460986748.

The product of its (nonzero) digits is 3375000, while the sum is 53.

The spelling of 115156516051565 in words is "one hundred fifteen trillion, one hundred fifty-six billion, five hundred sixteen million, fifty-one thousand, five hundred sixty-five".