115613613566 has 32 divisors (see below), whose sum is σ = 200388429792. Its totient is φ = 49442114560.

The previous prime is 115613613547. The next prime is 115613613569. The reversal of 115613613566 is 665316316511.

115613613566 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115613613569) 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, 982940 + ... + 1094256.

It is an arithmetic number, because the mean of its divisors is an integer number (6262138431).

Almost surely, 2^115613613566 is an apocalyptic number.

115613613566 is a deficient number, since it is larger than the sum of its proper divisors (84774816226).

115613613566 is a wasteful number, since it uses less digits than its factorization.

115613613566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114124.

The product of its digits is 291600, while the sum is 44.

The spelling of 115613613566 in words is "one hundred fifteen billion, six hundred thirteen million, six hundred thirteen thousand, five hundred sixty-six".