445451408617556 has 24 divisors (see below), whose sum is σ = 858663615561024. Its totient is φ = 200512108025280.

The previous prime is 445451408617529. The next prime is 445451408617561. The reversal of 445451408617556 is 655716804154544.

It is a junction number, because it is equal to n+sod(n) for n = 445451408617492 and 445451408617501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49145119985 + ... + 49145129048.

It is an arithmetic number, because the mean of its divisors is an integer number (35777650648376).

Almost surely, 2^{445451408617556} is an apocalyptic number.

It is an amenable number.

445451408617556 is a deficient number, since it is larger than the sum of its proper divisors (413212206943468).

445451408617556 is a wasteful number, since it uses less digits than its factorization.

445451408617556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98290249151 (or 98290249149 counting only the distinct ones).

The product of its (nonzero) digits is 322560000, while the sum is 65.

The spelling of 445451408617556 in words is "four hundred forty-five trillion, four hundred fifty-one billion, four hundred eight million, six hundred seventeen thousand, five hundred fifty-six".