10666611616 has 24 divisors (see below), whose sum is σ = 21207817764. Its totient is φ = 5280499200.

The previous prime is 10666611577. The next prime is 10666611661. The reversal of 10666611616 is 61611666601.

It can be written as a sum of positive squares in 2 ways, for example, as 10662627600 + 3984016 = 103260^2 + 1996^2 .

It is a super-2 number, since 2×10666611616² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646925 + ... + 1653388.

Almost surely, 2^10666611616 is an apocalyptic number.

10666611616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10666611616 is a deficient number, since it is larger than the sum of its proper divisors (10541206148).

10666611616 is a wasteful number, since it uses less digits than its factorization.

10666611616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300424 (or 3300416 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 10666611616 in words is "ten billion, six hundred sixty-six million, six hundred eleven thousand, six hundred sixteen".