40404566500 has 24 divisors (see below), whose sum is σ = 88243574328. Its totient is φ = 16161826400.

The previous prime is 40404566467. The next prime is 40404566537. The reversal of 40404566500 is 566540404.

It can be written as a sum of positive squares in 4 ways, for example, as 9998244 + 40394568256 = 3162^2 + 200984^2 .

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, 40404067 + ... + 40405066.

It is an arithmetic number, because the mean of its divisors is an integer number (3676815597).

Almost surely, 2^40404566500 is an apocalyptic number.

It is an amenable number.

40404566500 is an abundant number, since it is smaller than the sum of its proper divisors (47839007828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40404566500 is a wasteful number, since it uses less digits than its factorization.

40404566500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80809152 (or 80809140 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 40404566500 in words is "forty billion, four hundred four million, five hundred sixty-six thousand, five hundred".