445213685656 has 8 divisors (see below), whose sum is σ = 834775660620. Its totient is φ = 222606842824.

The previous prime is 445213685633. The next prime is 445213685699. The reversal of 445213685656 is 656586312544.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 445213685597 and 445213685606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825855346 + ... + 27825855361.

Almost surely, 2^445213685656 is an apocalyptic number.

It is an amenable number.

445213685656 is a deficient number, since it is larger than the sum of its proper divisors (389561974964).

445213685656 is a wasteful number, since it uses less digits than its factorization.

445213685656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55651710713 (or 55651710709 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 55.

The spelling of 445213685656 in words is "four hundred forty-five billion, two hundred thirteen million, six hundred eighty-five thousand, six hundred fifty-six".