45664641 has 40 divisors (see below), whose sum is σ = 75898944. Its totient is φ = 27125280.

The previous prime is 45664631. The next prime is 45664673. The reversal of 45664641 is 14646654.

45664641 is a `hidden beast` number, since 4 + 5 + 6 + 6 + 4 + 641 = 666.

It is not a de Polignac number, because 45664641 - 2⁵ = 45664609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45664596 and 45664605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45664621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46740 + ... + 47706.

Almost surely, 2^45664641 is an apocalyptic number.

It is an amenable number.

45664641 is a deficient number, since it is larger than the sum of its proper divisors (30234303).

45664641 is a wasteful number, since it uses less digits than its factorization.

45664641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1034 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 45664641 is about 6757.5617644236. The cubic root of 45664641 is about 357.4319325313.

The spelling of 45664641 in words is "forty-five million, six hundred sixty-four thousand, six hundred forty-one".