445210021516 has 12 divisors (see below), whose sum is σ = 839049656032. Its totient is φ = 205481548368.

The previous prime is 445210021457. The next prime is 445210021537. The reversal of 445210021516 is 615120012544.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4280865540 + ... + 4280865643.

Almost surely, 2^445210021516 is an apocalyptic number.

It is an amenable number.

445210021516 is a deficient number, since it is larger than the sum of its proper divisors (393839634516).

445210021516 is a wasteful number, since it uses less digits than its factorization.

445210021516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8561731200 (or 8561731198 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 445210021516 in words is "four hundred forty-five billion, two hundred ten million, twenty-one thousand, five hundred sixteen".