40646204264 has 16 divisors (see below), whose sum is σ = 80694670500. Its totient is φ = 19127625472.

The previous prime is 40646204251. The next prime is 40646204323. The reversal of 40646204264 is 46240264604.

It can be written as a sum of positive squares in 2 ways, for example, as 37613499364 + 3032704900 = 193942^2 + 55070^2 .

It is a super-2 number, since 2×40646204264² (a number of 22 digits) contains 22 as substring.

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, 149434439 + ... + 149434710.

Almost surely, 2^40646204264 is an apocalyptic number.

It is an amenable number.

40646204264 is a deficient number, since it is larger than the sum of its proper divisors (40048466236).

40646204264 is a wasteful number, since it uses less digits than its factorization.

40646204264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298869172 (or 298869168 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 40646204264 its reverse (46240264604), we get a palindrome (86886468868).

The spelling of 40646204264 in words is "forty billion, six hundred forty-six million, two hundred four thousand, two hundred sixty-four".