564663616 has 112 divisors (see below), whose sum is σ = 1306787328. Its totient is φ = 239500800.

The previous prime is 564663607. The next prime is 564663637. The reversal of 564663616 is 616366465.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695851 + ... + 696661.

It is an arithmetic number, because the mean of its divisors is an integer number (11667744).

Almost surely, 2^564663616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564663616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653393664).

564663616 is an abundant number, since it is smaller than the sum of its proper divisors (742123712).

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

564663616 is a wasteful number, since it uses less digits than its factorization.

564663616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 890 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The square root of 564663616 is about 23762.6517038819. The cubic root of 564663616 is about 826.5388436889.

The spelling of 564663616 in words is "five hundred sixty-four million, six hundred sixty-three thousand, six hundred sixteen".