5645120562 has 24 divisors (see below), whose sum is σ = 12561666156. Its totient is φ = 1830849696.

The previous prime is 5645120561. The next prime is 5645120627. The reversal of 5645120562 is 2650215465.

5645120562 is a `hidden beast` number, since 5 + 645 + 1 + 2 + 0 + 5 + 6 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5632652601 + 12467961 = 75051^2 + 3531^2 .

It is not an unprimeable number, because it can be changed into a prime (5645120561) 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, 4237413 + ... + 4238744.

Almost surely, 2^5645120562 is an apocalyptic number.

5645120562 is an abundant number, since it is smaller than the sum of its proper divisors (6916545594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5645120562 is a wasteful number, since it uses less digits than its factorization.

5645120562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476202 (or 8476199 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 5645120562 is about 75134.0173423463. The cubic root of 5645120562 is about 1780.5646235144.

The spelling of 5645120562 in words is "five billion, six hundred forty-five million, one hundred twenty thousand, five hundred sixty-two".