112717061561 has 16 divisors (see below), whose sum is σ = 126888128640. Its totient is φ = 99347698560.

The previous prime is 112717061549. The next prime is 112717061563. The reversal of 112717061561 is 165160717211.

It is a cyclic number.

It is not a de Polignac number, because 112717061561 - 2¹⁰ = 112717060537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112717061563) 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, 161135 + ... + 501396.

It is an arithmetic number, because the mean of its divisors is an integer number (7930508040).

Almost surely, 2^112717061561 is an apocalyptic number.

It is an amenable number.

112717061561 is a deficient number, since it is larger than the sum of its proper divisors (14171067079).

112717061561 is a wasteful number, since it uses less digits than its factorization.

112717061561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663136.

The product of its (nonzero) digits is 17640, while the sum is 38.

Adding to 112717061561 its reverse (165160717211), we get a palindrome (277877778772).

The spelling of 112717061561 in words is "one hundred twelve billion, seven hundred seventeen million, sixty-one thousand, five hundred sixty-one".