563346664 has 8 divisors (see below), whose sum is σ = 1056275010. Its totient is φ = 281673328.

The previous prime is 563346649. The next prime is 563346673. The reversal of 563346664 is 466643365.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 508141764 + 55204900 = 22542^2 + 7430^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 563346664.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35209159 + ... + 35209174.

Almost surely, 2^563346664 is an apocalyptic number.

It is an amenable number.

563346664 is a deficient number, since it is larger than the sum of its proper divisors (492928346).

563346664 is a wasteful number, since it uses less digits than its factorization.

563346664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70418339 (or 70418335 counting only the distinct ones).

The product of its digits is 933120, while the sum is 43.

The square root of 563346664 is about 23734.9249840820. The cubic root of 563346664 is about 825.8957709592.

The spelling of 563346664 in words is "five hundred sixty-three million, three hundred forty-six thousand, six hundred sixty-four".