113225406036561 has 48 divisors (see below), whose sum is σ = 201303024249600. Its totient is φ = 59719311262080.

The previous prime is 113225406036551. The next prime is 113225406036563. The reversal of 113225406036561 is 165630604522311.

It is a happy number.

113225406036561 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 2 + 54 + 0 + 6 + 0 + 36 + 561 = 666.

It is not a de Polignac number, because 113225406036561 - 2⁹ = 113225406036049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113225406036563) 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, 7711615 + ... + 16909163.

It is an arithmetic number, because the mean of its divisors is an integer number (4193813005200).

Almost surely, 2^{113225406036561} is an apocalyptic number.

It is an amenable number.

113225406036561 is a deficient number, since it is larger than the sum of its proper divisors (88077618213039).

113225406036561 is a wasteful number, since it uses less digits than its factorization.

113225406036561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212606 (or 9212603 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 113225406036561 in words is "one hundred thirteen trillion, two hundred twenty-five billion, four hundred six million, thirty-six thousand, five hundred sixty-one".