5666615606600 has 96 divisors (see below), whose sum is σ = 15022941673320. Its totient is φ = 1969213009920.

The previous prime is 5666615606591. The next prime is 5666615606647. The reversal of 5666615606600 is 66065166665.

It can be written as a sum of positive squares in 12 ways, for example, as 49364841124 + 5617250765476 = 222182^2 + 2370074^2 .

It is a super-2 number, since 2×5666615606600² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64057787 + ... + 64146186.

Almost surely, 2^{5666615606600} is an apocalyptic number.

5666615606600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5666615606600 is an abundant number, since it is smaller than the sum of its proper divisors (9356326066720).

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

5666615606600 is a wasteful number, since it uses less digits than its factorization.

5666615606600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128204019 (or 128204010 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 5666615606600 in words is "five trillion, six hundred sixty-six billion, six hundred fifteen million, six hundred six thousand, six hundred".