45645568 has 72 divisors (see below), whose sum is σ = 96313280. Its totient is φ = 21565440.

The previous prime is 45645563. The next prime is 45645577. The reversal of 45645568 is 86554654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45645563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577753 + ... + 577831.

Almost surely, 2^45645568 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 45645568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48156640).

45645568 is an abundant number, since it is smaller than the sum of its proper divisors (50667712).

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

45645568 is an equidigital number, since it uses as much as digits as its factorization.

45645568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 179 counting only the distinct ones).

The product of its digits is 576000, while the sum is 43.

The square root of 45645568 is about 6756.1503831694. The cubic root of 45645568 is about 357.3821620856.

The spelling of 45645568 in words is "forty-five million, six hundred forty-five thousand, five hundred sixty-eight".