45653661 has 12 divisors (see below), whose sum is σ = 66106300. Its totient is φ = 30360960.

The previous prime is 45653611. The next prime is 45653683. The reversal of 45653661 is 16635654.

45653661 is a `hidden beast` number, since 4 + 565 + 36 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 34222500 = 3381^2 + 5850^2 .

It is not a de Polignac number, because 45653661 - 2¹⁰ = 45652637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45653611) 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, 2236 + ... + 9813.

Almost surely, 2^45653661 is an apocalyptic number.

It is an amenable number.

45653661 is a deficient number, since it is larger than the sum of its proper divisors (20452639).

45653661 is a wasteful number, since it uses less digits than its factorization.

45653661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476 (or 12473 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 45653661 is about 6756.7492923743. The cubic root of 45653661 is about 357.4032822296.

The spelling of 45653661 in words is "forty-five million, six hundred fifty-three thousand, six hundred sixty-one".