10666566616 has 32 divisors (see below), whose sum is σ = 20092406400. Its totient is φ = 5308629760.

The previous prime is 10666566611. The next prime is 10666566637. The reversal of 10666566616 is 61666566601.

It is a super-2 number, since 2×10666566616² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10666566616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666566611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4115481 + ... + 4118071.

It is an arithmetic number, because the mean of its divisors is an integer number (627887700).

Almost surely, 2^10666566616 is an apocalyptic number.

It is an amenable number.

10666566616 is a deficient number, since it is larger than the sum of its proper divisors (9425839784).

10666566616 is a wasteful number, since it uses less digits than its factorization.

10666566616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779 (or 4775 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 10666566616 in words is "ten billion, six hundred sixty-six million, five hundred sixty-six thousand, six hundred sixteen".