10664568 has 64 divisors (see below), whose sum is σ = 29988000. Its totient is φ = 3511296.

The previous prime is 10664561. The next prime is 10664581. The reversal of 10664568 is 86546601.

10664568 is a `hidden beast` number, since 1 + 0 + 6 + 645 + 6 + 8 = 666.

10664568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10664568² = 227466021253248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10664561) 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, 20698 + ... + 21206.

Almost surely, 2^10664568 is an apocalyptic number.

10664568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10664568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14994000).

10664568 is an abundant number, since it is smaller than the sum of its proper divisors (19323432).

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

10664568 is a wasteful number, since it uses less digits than its factorization.

10664568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 10664568 is about 3265.6650165012. The cubic root of 10664568 is about 220.1140455530.

The spelling of 10664568 in words is "ten million, six hundred sixty-four thousand, five hundred sixty-eight".