564449646944465 has 8 divisors (see below), whose sum is σ = 683915688725568. Its totient is φ = 447175642627440.

The previous prime is 564449646944453. The next prime is 564449646944507.

564449646944465 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-564449646944465 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564449646944465.

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, 548009365451 + ... + 548009366480.

It is an arithmetic number, because the mean of its divisors is an integer number (85489461090696).

Almost surely, 2^{564449646944465} is an apocalyptic number.

It is an amenable number.

564449646944465 is a deficient number, since it is larger than the sum of its proper divisors (119466041781103).

564449646944465 is a wasteful number, since it uses less digits than its factorization.

564449646944465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096018732039.

The product of its digits is 42998169600, while the sum is 80.

The spelling of 564449646944465 in words is "five hundred sixty-four trillion, four hundred forty-nine billion, six hundred forty-six million, nine hundred forty-four thousand, four hundred sixty-five".