4456645641 has 24 divisors (see below), whose sum is σ = 7367939904. Its totient is φ = 2542868640.

The previous prime is 4456645637. The next prime is 4456645649. The reversal of 4456645641 is 1465466544.

4456645641 is a `hidden beast` number, since 4 + 4 + 566 + 45 + 6 + 41 = 666.

It is not a de Polignac number, because 4456645641 - 2² = 4456645637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4456645649) 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, 9595 + ... + 94896.

It is an arithmetic number, because the mean of its divisors is an integer number (306997496).

Almost surely, 2^4456645641 is an apocalyptic number.

It is an amenable number.

4456645641 is a deficient number, since it is larger than the sum of its proper divisors (2911294263).

4456645641 is a wasteful number, since it uses less digits than its factorization.

4456645641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105181 (or 105178 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 4456645641 is about 66758.1129227003. The cubic root of 4456645641 is about 1645.6445451100.

The spelling of 4456645641 in words is "four billion, four hundred fifty-six million, six hundred forty-five thousand, six hundred forty-one".