40606660624 has 20 divisors (see below), whose sum is σ = 80159848236. Its totient is φ = 19920248192.

The previous prime is 40606660579. The next prime is 40606660631. The reversal of 40606660624 is 42606660604.

It can be written as a sum of positive squares in 2 ways, for example, as 28513699600 + 12092961024 = 168860^2 + 109968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23941759 + ... + 23943454.

Almost surely, 2^40606660624 is an apocalyptic number.

It is an amenable number.

40606660624 is a deficient number, since it is larger than the sum of its proper divisors (39553187612).

40606660624 is a wasteful number, since it uses less digits than its factorization.

40606660624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47885274 (or 47885268 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 40606660624 in words is "forty billion, six hundred six million, six hundred sixty thousand, six hundred twenty-four".