11166658657 has 24 divisors (see below), whose sum is σ = 14176972512. Its totient is φ = 8697427200.

The previous prime is 11166658637. The next prime is 11166658661. The reversal of 11166658657 is 75685666111.

It is a happy number.

It is not a de Polignac number, because 11166658657 - 2¹¹ = 11166656609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11166658637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2111857 + ... + 2117137.

It is an arithmetic number, because the mean of its divisors is an integer number (590707188).

Almost surely, 2^11166658657 is an apocalyptic number.

It is an amenable number.

11166658657 is a deficient number, since it is larger than the sum of its proper divisors (3010313855).

11166658657 is a wasteful number, since it uses less digits than its factorization.

11166658657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9229 (or 9222 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The spelling of 11166658657 in words is "eleven billion, one hundred sixty-six million, six hundred fifty-eight thousand, six hundred fifty-seven".