564651165 has 16 divisors (see below), whose sum is σ = 972937728. Its totient is φ = 277982016.

The previous prime is 564651163. The next prime is 564651167. The reversal of 564651165 is 561156465.

It is an interprime number because it is at equal distance from previous prime (564651163) and next prime (564651167).

It is not a de Polignac number, because 564651165 - 2¹ = 564651163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564651161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447629 + ... + 1448018.

It is an arithmetic number, because the mean of its divisors is an integer number (60808608).

Almost surely, 2^564651165 is an apocalyptic number.

It is an amenable number.

564651165 is a deficient number, since it is larger than the sum of its proper divisors (408286563).

564651165 is a wasteful number, since it uses less digits than its factorization.

564651165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895668.

The product of its digits is 108000, while the sum is 39.

The square root of 564651165 is about 23762.3897156831. The cubic root of 564651165 is about 826.5327685021.

It can be divided in two parts, 56465 and 1165, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 564651165 in words is "five hundred sixty-four million, six hundred fifty-one thousand, one hundred sixty-five".