45565668 has 72 divisors (see below), whose sum is σ = 121500288. Its totient is φ = 14370048.

The previous prime is 45565649. The next prime is 45565673. The reversal of 45565668 is 86656554.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93321 + ... + 93807.

It is an arithmetic number, because the mean of its divisors is an integer number (1687504).

Almost surely, 2^45565668 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 45565668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60750144).

45565668 is an abundant number, since it is smaller than the sum of its proper divisors (75934620).

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

45565668 is a wasteful number, since it uses less digits than its factorization.

45565668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 628 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 45565668 is about 6750.2346625877. The cubic root of 45565668 is about 357.1735145035.

The spelling of 45565668 in words is "forty-five million, five hundred sixty-five thousand, six hundred sixty-eight".