40518333620656 has 40 divisors (see below), whose sum is σ = 78736071801024. Its totient is φ = 20199355606080.

The previous prime is 40518333620629. The next prime is 40518333620671. The reversal of 40518333620656 is 65602633381504.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80603211 + ... + 81104341.

Almost surely, 2^{40518333620656} is an apocalyptic number.

It is an amenable number.

40518333620656 is a deficient number, since it is larger than the sum of its proper divisors (38217738180368).

40518333620656 is a wasteful number, since it uses less digits than its factorization.

40518333620656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516049 (or 516043 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 52.

The spelling of 40518333620656 in words is "forty trillion, five hundred eighteen billion, three hundred thirty-three million, six hundred twenty thousand, six hundred fifty-six".