40646506636 has 12 divisors (see below), whose sum is σ = 71148348040. Its totient is φ = 20318407200.

The previous prime is 40646506627. The next prime is 40646506699. The reversal of 40646506636 is 63660564604.

40646506636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 1192626 + ... + 1226233.

Almost surely, 2^40646506636 is an apocalyptic number.

It is an amenable number.

40646506636 is a deficient number, since it is larger than the sum of its proper divisors (30501841404).

40646506636 is a wasteful number, since it uses less digits than its factorization.

40646506636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423064 (or 2423062 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 40646506636 in words is "forty billion, six hundred forty-six million, five hundred six thousand, six hundred thirty-six".