5644015650 has 144 divisors (see below), whose sum is σ = 18663013824. Its totient is φ = 1190816640.

The previous prime is 5644015649. The next prime is 5644015661. The reversal of 5644015650 is 565104465.

5644015650 is a `hidden beast` number, since 5 + 644 + 0 + 1 + 5 + 6 + 5 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27964 + ... + 109863.

Almost surely, 2^5644015650 is an apocalyptic number.

5644015650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5644015650 is an abundant number, since it is smaller than the sum of its proper divisors (13018998174).

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

5644015650 is a wasteful number, since it uses less digits than its factorization.

5644015650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137865 (or 137857 counting only the distinct ones).

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

The square root of 5644015650 is about 75126.6640414707. The cubic root of 5644015650 is about 1780.4484467462.

The spelling of 5644015650 in words is "five billion, six hundred forty-four million, fifteen thousand, six hundred fifty".