112412537661 has 4 divisors (see below), whose sum is σ = 149883383552. Its totient is φ = 74941691772.

The previous prime is 112412537599. The next prime is 112412537663. The reversal of 112412537661 is 166735214211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 112412537661 - 2¹⁸ = 112412275517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112412537663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18735422941 + ... + 18735422946.

It is an arithmetic number, because the mean of its divisors is an integer number (37470845888).

Almost surely, 2^112412537661 is an apocalyptic number.

It is an amenable number.

112412537661 is a deficient number, since it is larger than the sum of its proper divisors (37470845891).

112412537661 is an equidigital number, since it uses as much as digits as its factorization.

112412537661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37470845890.

The product of its digits is 60480, while the sum is 39.

The spelling of 112412537661 in words is "one hundred twelve billion, four hundred twelve million, five hundred thirty-seven thousand, six hundred sixty-one".