40133304656 has 20 divisors (see below), whose sum is σ = 77767448532. Its totient is φ = 20064285696.

The previous prime is 40133304641. The next prime is 40133304683. The reversal of 40133304656 is 65640333104.

It can be written as a sum of positive squares in 2 ways, for example, as 22976496400 + 17156808256 = 151580^2 + 130984^2 .

It is a super-2 number, since 2×40133304656² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 3755 + ... + 283338.

Almost surely, 2^40133304656 is an apocalyptic number.

It is an amenable number.

40133304656 is a deficient number, since it is larger than the sum of its proper divisors (37634143876).

40133304656 is a wasteful number, since it uses less digits than its factorization.

40133304656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295838 (or 295832 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 40133304656 in words is "forty billion, one hundred thirty-three million, three hundred four thousand, six hundred fifty-six".