45516645 has 24 divisors (see below), whose sum is σ = 79077336. Its totient is φ = 24219648.

The previous prime is 45516643. The next prime is 45516659. The reversal of 45516645 is 54661554.

45516645 is a `hidden beast` number, since 4 + 5 + 5 + 1 + 6 + 645 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5788836 + 39727809 = 2406^2 + 6303^2 .

It is not a de Polignac number, because 45516645 - 2¹ = 45516643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45516641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25089 + ... + 26841.

It is an arithmetic number, because the mean of its divisors is an integer number (3294889).

Almost surely, 2^45516645 is an apocalyptic number.

45516645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45516645 is a deficient number, since it is larger than the sum of its proper divisors (33560691).

45516645 is a wasteful number, since it uses less digits than its factorization.

45516645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2338 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 45516645 is about 6746.6024782849. The cubic root of 45516645 is about 357.0453770910.

The spelling of 45516645 in words is "forty-five million, five hundred sixteen thousand, six hundred forty-five".