441138475581516 has 18 divisors (see below), whose sum is σ = 1115100035497812. Its totient is φ = 147046158527160.

The previous prime is 441138475581403. The next prime is 441138475581523. The reversal of 441138475581516 is 615185574831144.

441138475581516 is a `hidden beast` number, since 4 + 4 + 1 + 1 + 3 + 8 + 47 + 5 + 581 + 5 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6126923271930 + ... + 6126923272001.

Almost surely, 2^{441138475581516} is an apocalyptic number.

It is an amenable number.

441138475581516 is an abundant number, since it is smaller than the sum of its proper divisors (673961559916296).

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

441138475581516 is a wasteful number, since it uses less digits than its factorization.

441138475581516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12253846543941 (or 12253846543936 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 63.

The spelling of 441138475581516 in words is "four hundred forty-one trillion, one hundred thirty-eight billion, four hundred seventy-five million, five hundred eighty-one thousand, five hundred sixteen".