444621541161744 has 160 divisors (see below), whose sum is σ = 1351328986016640. Its totient is φ = 139486197547008.

The previous prime is 444621541161689. The next prime is 444621541161781. The reversal of 444621541161744 is 447161145126444.

444621541161744 is a `hidden beast` number, since 4 + 4 + 4 + 6 + 2 + 1 + 5 + 4 + 11 + 617 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365439664 + ... + 366654320.

It is an arithmetic number, because the mean of its divisors is an integer number (8445806162604).

Almost surely, 2^{444621541161744} is an apocalyptic number.

It is an amenable number.

444621541161744 is an abundant number, since it is smaller than the sum of its proper divisors (906707444854896).

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

444621541161744 is a wasteful number, since it uses less digits than its factorization.

444621541161744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264534 (or 1264522 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The spelling of 444621541161744 in words is "four hundred forty-four trillion, six hundred twenty-one billion, five hundred forty-one million, one hundred sixty-one thousand, seven hundred forty-four".