115506156556197 has 48 divisors (see below), whose sum is σ = 183480224718336. Its totient is φ = 69439487220000.

The previous prime is 115506156556183. The next prime is 115506156556201. The reversal of 115506156556197 is 791655651605511.

It is a happy number.

115506156556197 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 0 + 6 + 1 + 5 + 6 + 5 + 5 + 619 + 7 = 666.

It is not a de Polignac number, because 115506156556197 - 2⁴ = 115506156556181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115506156554197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4738818 + ... + 15920700.

It is an arithmetic number, because the mean of its divisors is an integer number (3822504681632).

Almost surely, 2^{115506156556197} is an apocalyptic number.

It is an amenable number.

115506156556197 is a deficient number, since it is larger than the sum of its proper divisors (67974068162139).

115506156556197 is a wasteful number, since it uses less digits than its factorization.

115506156556197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182742 (or 11182739 counting only the distinct ones).

The product of its (nonzero) digits is 42525000, while the sum is 63.

The spelling of 115506156556197 in words is "one hundred fifteen trillion, five hundred six billion, one hundred fifty-six million, five hundred fifty-six thousand, one hundred ninety-seven".