37112961561 has 16 divisors (see below), whose sum is σ = 53301870720. Its totient is φ = 22833832320.

The previous prime is 37112961551. The next prime is 37112961569. The reversal of 37112961561 is 16516921173.

It is not a de Polignac number, because 37112961561 - 2¹³ = 37112953369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37112961569) 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, 85621 + ... + 285581.

It is an arithmetic number, because the mean of its divisors is an integer number (3331366920).

Almost surely, 2^37112961561 is an apocalyptic number.

It is an amenable number.

37112961561 is a deficient number, since it is larger than the sum of its proper divisors (16188909159).

37112961561 is a wasteful number, since it uses less digits than its factorization.

37112961561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204736.

The product of its digits is 68040, while the sum is 42.

The spelling of 37112961561 in words is "thirty-seven billion, one hundred twelve million, nine hundred sixty-one thousand, five hundred sixty-one".