40566444580 has 24 divisors (see below), whose sum is σ = 88893427392. Its totient is φ = 15521074272.

The previous prime is 40566444571. The next prime is 40566444643. The reversal of 40566444580 is 8544466504.

It is a super-2 number, since 2×40566444580² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 40566444580.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44093502 + ... + 44094421.

It is an arithmetic number, because the mean of its divisors is an integer number (3703892808).

Almost surely, 2^40566444580 is an apocalyptic number.

It is an amenable number.

40566444580 is an abundant number, since it is smaller than the sum of its proper divisors (48326982812).

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

40566444580 is a wasteful number, since it uses less digits than its factorization.

40566444580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88187955 (or 88187953 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 40566444580 in words is "forty billion, five hundred sixty-six million, four hundred forty-four thousand, five hundred eighty".