10666216660 has 48 divisors (see below), whose sum is σ = 24955257600. Its totient is φ = 3796096640.

The previous prime is 10666216657. The next prime is 10666216667. The reversal of 10666216660 is 6661266601.

10666216660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10666216660² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666216667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505435 + ... + 526114.

It is an arithmetic number, because the mean of its divisors is an integer number (519901200).

Almost surely, 2^10666216660 is an apocalyptic number.

10666216660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10666216660 is an abundant number, since it is smaller than the sum of its proper divisors (14289040940).

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

10666216660 is a wasteful number, since it uses less digits than its factorization.

10666216660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031616 (or 1031614 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 10666216660 in words is "ten billion, six hundred sixty-six million, two hundred sixteen thousand, six hundred sixty".