445666993415 has 16 divisors (see below), whose sum is σ = 647153416512. Its totient is φ = 287623739904.

The previous prime is 445666993399. The next prime is 445666993477. The reversal of 445666993415 is 514399666544.

It is a cyclic number.

It is not a de Polignac number, because 445666993415 - 2⁴ = 445666993399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374509484 + ... + 374510673.

It is an arithmetic number, because the mean of its divisors is an integer number (40447088532).

Almost surely, 2^445666993415 is an apocalyptic number.

445666993415 is a deficient number, since it is larger than the sum of its proper divisors (201486423097).

445666993415 is a wasteful number, since it uses less digits than its factorization.

445666993415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749020186.

The product of its digits is 83980800, while the sum is 62.

The spelling of 445666993415 in words is "four hundred forty-five billion, six hundred sixty-six million, nine hundred ninety-three thousand, four hundred fifteen".