444532563015640 has 96 divisors (see below), whose sum is σ = 1099948725141840. Its totient is φ = 161566271102720.

The previous prime is 444532563015547. The next prime is 444532563015643. The reversal of 444532563015640 is 46510365235444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444532563015643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13726294 + ... + 32824933.

Almost surely, 2^{444532563015640} is an apocalyptic number.

444532563015640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444532563015640 is an abundant number, since it is smaller than the sum of its proper divisors (655416162126200).

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

444532563015640 is a wasteful number, since it uses less digits than its factorization.

444532563015640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46553233 (or 46553218 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 52.

The spelling of 444532563015640 in words is "four hundred forty-four trillion, five hundred thirty-two billion, five hundred sixty-three million, fifteen thousand, six hundred forty".