5636657580 has 96 divisors (see below), whose sum is σ = 16196404224. Its totient is φ = 1463906304.

The previous prime is 5636657567. The next prime is 5636657597. The reversal of 5636657580 is 857566365.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943884 + ... + 949836.

It is an arithmetic number, because the mean of its divisors is an integer number (168712544).

Almost surely, 2^5636657580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5636657580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8098202112).

5636657580 is an abundant number, since it is smaller than the sum of its proper divisors (10559746644).

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

5636657580 is a wasteful number, since it uses less digits than its factorization.

5636657580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375 (or 6373 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 51.

The square root of 5636657580 is about 75077.6769752501. The cubic root of 5636657580 is about 1779.6743902157.

The spelling of 5636657580 in words is "five billion, six hundred thirty-six million, six hundred fifty-seven thousand, five hundred eighty".