115651646563 has 16 divisors (see below), whose sum is σ = 117789889536. Its totient is φ = 113529211200.

The previous prime is 115651646531. The next prime is 115651646569. The reversal of 115651646563 is 365646156511.

It is a cyclic number.

It is not a de Polignac number, because 115651646563 - 2⁵ = 115651646531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115651646569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28546888 + ... + 28550938.

It is an arithmetic number, because the mean of its divisors is an integer number (7361868096).

Almost surely, 2^115651646563 is an apocalyptic number.

115651646563 is a deficient number, since it is larger than the sum of its proper divisors (2138242973).

115651646563 is a wasteful number, since it uses less digits than its factorization.

115651646563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874.

The product of its digits is 1944000, while the sum is 49.

The spelling of 115651646563 in words is "one hundred fifteen billion, six hundred fifty-one million, six hundred forty-six thousand, five hundred sixty-three".