566622666100 has 72 divisors (see below), whose sum is σ = 1253023551360. Its totient is φ = 222327780480.

The previous prime is 566622666083. The next prime is 566622666121. The reversal of 566622666100 is 1666226665.

It is a super-2 number, since 2×566622666100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 40818961 + ... + 40832839.

It is an arithmetic number, because the mean of its divisors is an integer number (17403104880).

Almost surely, 2^566622666100 is an apocalyptic number.

566622666100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566622666100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626511775680).

566622666100 is an abundant number, since it is smaller than the sum of its proper divisors (686400885260).

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

566622666100 is a wasteful number, since it uses less digits than its factorization.

566622666100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21649 (or 21642 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 566622666100 in words is "five hundred sixty-six billion, six hundred twenty-two million, six hundred sixty-six thousand, one hundred".