45115668 has 36 divisors (see below), whose sum is σ = 122816148. Its totient is φ = 13881600.

The previous prime is 45115663. The next prime is 45115669. The reversal of 45115668 is 86651154.

It can be written as a sum of positive squares in 2 ways, for example, as 2108304 + 43007364 = 1452^2 + 6558^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 (45115663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47733 + ... + 48668.

Almost surely, 2^45115668 is an apocalyptic number.

It is an amenable number.

45115668 is an abundant number, since it is smaller than the sum of its proper divisors (77700480).

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

45115668 is a wasteful number, since it uses less digits than its factorization.

45115668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96424 (or 96419 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 45115668 is about 6716.8197832010. The cubic root of 45115668 is about 355.9938243258.

The spelling of 45115668 in words is "forty-five million, one hundred fifteen thousand, six hundred sixty-eight".