5666554660 has 96 divisors (see below), whose sum is σ = 13101580800. Its totient is φ = 2046021120.

The previous prime is 5666554637. The next prime is 5666554667. The reversal of 5666554660 is 664556665.

It is not an unprimeable number, because it can be changed into a prime (5666554667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2237595 + ... + 2240125.

It is an arithmetic number, because the mean of its divisors is an integer number (136474800).

Almost surely, 2^5666554660 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 5666554660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6550790400).

5666554660 is an abundant number, since it is smaller than the sum of its proper divisors (7435026140).

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

5666554660 is a wasteful number, since it uses less digits than its factorization.

5666554660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2739 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 49.

The square root of 5666554660 is about 75276.5213064472. The cubic root of 5666554660 is about 1782.8153339523.

The spelling of 5666554660 in words is "five billion, six hundred sixty-six million, five hundred fifty-four thousand, six hundred sixty".