10666716657 has 8 divisors (see below), whose sum is σ = 15058894176. Its totient is φ = 6692841792.

The previous prime is 10666716653. The next prime is 10666716659. The reversal of 10666716657 is 75661766601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10666716657 - 2² = 10666716653 is a prime.

It is a super-2 number, since 2×10666716657² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 209151307 = 10666716657 / (1 + 0 + 6 + 6 + 6 + 7 + 1 + 6 + 6 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (10666716653) 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, 104575603 + ... + 104575704.

It is an arithmetic number, because the mean of its divisors is an integer number (1882361772).

Almost surely, 2^10666716657 is an apocalyptic number.

10666716657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10666716657 is a deficient number, since it is larger than the sum of its proper divisors (4392177519).

10666716657 is a wasteful number, since it uses less digits than its factorization.

10666716657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209151327.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 10666716657 in words is "ten billion, six hundred sixty-six million, seven hundred sixteen thousand, six hundred fifty-seven".