40560624661 has 12 divisors (see below), whose sum is σ = 43029626412. Its totient is φ = 38226691584.

The previous prime is 40560624647. The next prime is 40560624667. The reversal of 40560624661 is 16642606504.

It can be written as a sum of positive squares in 2 ways, for example, as 16132810225 + 24427814436 = 127015^2 + 156294^2 .

It is not a de Polignac number, because 40560624661 - 2¹⁵ = 40560591893 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 (40560624667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221406 + ... + 360751.

It is an arithmetic number, because the mean of its divisors is an integer number (3585802201).

Almost surely, 2^40560624661 is an apocalyptic number.

It is an amenable number.

40560624661 is a deficient number, since it is larger than the sum of its proper divisors (2469001751).

40560624661 is a wasteful number, since it uses less digits than its factorization.

40560624661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582388 (or 582369 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 40560624661 in words is "forty billion, five hundred sixty million, six hundred twenty-four thousand, six hundred sixty-one".