115156515161009 has 16 divisors (see below), whose sum is σ = 136413687994368. Its totient is φ = 95163592966992.

The previous prime is 115156515160969. The next prime is 115156515161033. The reversal of 115156515161009 is 900161515651511.

It is a cyclic number.

It is not a de Polignac number, because 115156515161009 - 2⁴⁰ = 114057003533233 is a prime.

It is a super-2 number, since 2×115156515161009² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115156515161309) 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, 2612066039 + ... + 2612110124.

It is an arithmetic number, because the mean of its divisors is an integer number (8525855499648).

Almost surely, 2^{115156515161009} is an apocalyptic number.

It is an amenable number.

115156515161009 is a deficient number, since it is larger than the sum of its proper divisors (21257172833359).

115156515161009 is an equidigital number, since it uses as much as digits as its factorization.

115156515161009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224176284.

The product of its (nonzero) digits is 202500, while the sum is 47.

The spelling of 115156515161009 in words is "one hundred fifteen trillion, one hundred fifty-six billion, five hundred fifteen million, one hundred sixty-one thousand, nine".