5661864124 has 24 divisors (see below), whose sum is σ = 11332374368. Its totient is φ = 2424660480.

The previous prime is 5661864113. The next prime is 5661864133. The reversal of 5661864124 is 4214681665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39549 + ... + 113524.

Almost surely, 2^5661864124 is an apocalyptic number.

It is an amenable number.

5661864124 is an abundant number, since it is smaller than the sum of its proper divisors (5670510244).

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

5661864124 is a wasteful number, since it uses less digits than its factorization.

5661864124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154405 (or 154403 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 5661864124 is about 75245.3594848214. The cubic root of 5661864124 is about 1782.3232849381.

The spelling of 5661864124 in words is "five billion, six hundred sixty-one million, eight hundred sixty-four thousand, one hundred twenty-four".