440564532168 has 32 divisors (see below), whose sum is σ = 1101443844960. Its totient is φ = 146850508800.

The previous prime is 440564532167. The next prime is 440564532181. The reversal of 440564532168 is 861235465044.

It is not an unprimeable number, because it can be changed into a prime (440564532167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618568 + ... + 1124168.

It is an arithmetic number, because the mean of its divisors is an integer number (34420120155).

Almost surely, 2^440564532168 is an apocalyptic number.

It is an amenable number.

440564532168 is an abundant number, since it is smaller than the sum of its proper divisors (660879312792).

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

440564532168 is a wasteful number, since it uses less digits than its factorization.

440564532168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541917 (or 541913 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 440564532168 in words is "four hundred forty billion, five hundred sixty-four million, five hundred thirty-two thousand, one hundred sixty-eight".