444160354640 has 20 divisors (see below), whose sum is σ = 1032672824724. Its totient is φ = 177664141824.

The previous prime is 444160354567. The next prime is 444160354663. The reversal of 444160354640 is 46453061444.

It can be written as a sum of positive squares in 2 ways, for example, as 338337662224 + 105822692416 = 581668^2 + 325304^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2776002137 + ... + 2776002296.

Almost surely, 2^444160354640 is an apocalyptic number.

444160354640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444160354640 is an abundant number, since it is smaller than the sum of its proper divisors (588512470084).

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

444160354640 is a wasteful number, since it uses less digits than its factorization.

444160354640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552004446 (or 5552004440 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 444160354640 in words is "four hundred forty-four billion, one hundred sixty million, three hundred fifty-four thousand, six hundred forty".