565061664 has 24 divisors (see below), whose sum is σ = 1483287120. Its totient is φ = 188353856.

The previous prime is 565061639. The next prime is 565061687. The reversal of 565061664 is 466160565.

It is a tau number, because it is divible by the number of its divisors (24).

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, 2942934 + ... + 2943125.

It is an arithmetic number, because the mean of its divisors is an integer number (61803630).

Almost surely, 2^565061664 is an apocalyptic number.

It is an amenable number.

565061664 is an abundant number, since it is smaller than the sum of its proper divisors (918225456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

565061664 is a wasteful number, since it uses less digits than its factorization.

565061664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5886072 (or 5886064 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 565061664 is about 23771.0257246085. The cubic root of 565061664 is about 826.7330152551.

The spelling of 565061664 in words is "five hundred sixty-five million, sixty-one thousand, six hundred sixty-four".