10665974309 has 2 divisors, whose sum is σ = 10665974310. Its totient is φ = 10665974308.

The previous prime is 10665974279. The next prime is 10665974353. The reversal of 10665974309 is 90347956601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5666777284 + 4999197025 = 75278^2 + 70705^2 .

It is a cyclic number.

It is not a de Polignac number, because 10665974309 - 2²⁴ = 10649197093 is a prime.

It is a super-2 number, since 2×10665974309² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10665974509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5332987154 + 5332987155.

It is an arithmetic number, because the mean of its divisors is an integer number (5332987155).

Almost surely, 2^10665974309 is an apocalyptic number.

It is an amenable number.

10665974309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10665974309 is an equidigital number, since it uses as much as digits as its factorization.

10665974309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 10665974309 in words is "ten billion, six hundred sixty-five million, nine hundred seventy-four thousand, three hundred nine".