440426600664 has 16 divisors (see below), whose sum is σ = 1101066501720. Its totient is φ = 146808866880.

The previous prime is 440426600641. The next prime is 440426600693. The reversal of 440426600664 is 466006624044.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9175554157 + ... + 9175554204.

Almost surely, 2^440426600664 is an apocalyptic number.

It is an amenable number.

440426600664 is an abundant number, since it is smaller than the sum of its proper divisors (660639901056).

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

440426600664 is a wasteful number, since it uses less digits than its factorization.

440426600664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351108370 (or 18351108366 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 440426600664 in words is "four hundred forty billion, four hundred twenty-six million, six hundred thousand, six hundred sixty-four".