40544166400 has 60 divisors (see below), whose sum is σ = 100451371482. Its totient is φ = 16217661440.

The previous prime is 40544166391. The next prime is 40544166419. The reversal of 40544166400 is 466144504.

It can be written as a sum of positive squares in 3 ways, for example, as 16143227136 + 24400939264 = 127056^2 + 156208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1570957 + ... + 1596556.

Almost surely, 2^40544166400 is an apocalyptic number.

40544166400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40544166400 is an abundant number, since it is smaller than the sum of its proper divisors (59907205082).

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

40544166400 is an equidigital number, since it uses as much as digits as its factorization.

40544166400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167541 (or 3167520 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 40544166400 in words is "forty billion, five hundred forty-four million, one hundred sixty-six thousand, four hundred".