40566631400 has 48 divisors (see below), whose sum is σ = 94806199500. Its totient is φ = 16142561280.

The previous prime is 40566631337. The next prime is 40566631433. The reversal of 40566631400 is 413666504.

It can be written as a sum of positive squares in 6 ways, for example, as 24228167716 + 16338463684 = 155654^2 + 127822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 486875 + ... + 564074.

Almost surely, 2^40566631400 is an apocalyptic number.

40566631400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40566631400 is an abundant number, since it is smaller than the sum of its proper divisors (54239568100).

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

40566631400 is a wasteful number, since it uses less digits than its factorization.

40566631400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051158 (or 1051149 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 40566631400 in words is "forty billion, five hundred sixty-six million, six hundred thirty-one thousand, four hundred".