4645113561 has 20 divisors (see below), whose sum is σ = 7569816144. Its totient is φ = 2815219800.

The previous prime is 4645113497. The next prime is 4645113581. The reversal of 4645113561 is 1653115464.

4645113561 is a `hidden beast` number, since 4 + 645 + 1 + 1 + 3 + 5 + 6 + 1 = 666.

It is not a de Polignac number, because 4645113561 - 2⁶ = 4645113497 is a prime.

It is a super-2 number, since 2×4645113561² = 43154159989172201442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4645113581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2605795 + ... + 2607576.

Almost surely, 2^4645113561 is an apocalyptic number.

It is an amenable number.

4645113561 is a deficient number, since it is larger than the sum of its proper divisors (2924702583).

4645113561 is a wasteful number, since it uses less digits than its factorization.

4645113561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213394 (or 5213385 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 4645113561 is about 68155.0699581476. The cubic root of 4645113561 is about 1668.5226708131.

The spelling of 4645113561 in words is "four billion, six hundred forty-five million, one hundred thirteen thousand, five hundred sixty-one".