45811616 has 12 divisors (see below), whose sum is σ = 90191682. Its totient is φ = 22905792.

The previous prime is 45811613. The next prime is 45811621. The reversal of 45811616 is 61611854.

It can be written as a sum of positive squares in only one way, i.e., 35952016 + 9859600 = 5996^2 + 3140^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1431613 = 45811616 / (4 + 5 + 8 + 1 + 1 + 6 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (45811613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715775 + ... + 715838.

Almost surely, 2^45811616 is an apocalyptic number.

It is an amenable number.

45811616 is a deficient number, since it is larger than the sum of its proper divisors (44380066).

45811616 is a wasteful number, since it uses less digits than its factorization.

45811616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431623 (or 1431615 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 45811616 is about 6768.4278824554. The cubic root of 45811616 is about 357.8149954925.

The spelling of 45811616 in words is "forty-five million, eight hundred eleven thousand, six hundred sixteen".