445515966 has 24 divisors (see below), whose sum is σ = 1103182704. Its totient is φ = 127290240.

The previous prime is 445515953. The next prime is 445516013. The reversal of 445515966 is 669515544.

445515966 is a `hidden beast` number, since 4 + 4 + 5 + 51 + 596 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1767795 + ... + 1768046.

It is an arithmetic number, because the mean of its divisors is an integer number (45965946).

Almost surely, 2^445515966 is an apocalyptic number.

445515966 is an abundant number, since it is smaller than the sum of its proper divisors (657666738).

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

445515966 is a wasteful number, since it uses less digits than its factorization.

445515966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535856 (or 3535853 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 445515966 is about 21107.2491338876. The cubic root of 445515966 is about 763.7556291534.

The spelling of 445515966 in words is "four hundred forty-five million, five hundred fifteen thousand, nine hundred sixty-six".