22666851 has 16 divisors (see below), whose sum is σ = 33655200. Its totient is φ = 15077664.

The previous prime is 22666849. The next prime is 22666871. The reversal of 22666851 is 15866622.

It is not a de Polignac number, because 22666851 - 2¹ = 22666849 is a prime.

It is a super-2 number, since 2×22666851² = 1027572268512402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22666801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19885 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (2103450).

Almost surely, 2^22666851 is an apocalyptic number.

22666851 is a deficient number, since it is larger than the sum of its proper divisors (10988349).

22666851 is a wasteful number, since it uses less digits than its factorization.

22666851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875 (or 1869 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 22666851 is about 4760.9716445280. The cubic root of 22666851 is about 283.0069254591.

The spelling of 22666851 in words is "twenty-two million, six hundred sixty-six thousand, eight hundred fifty-one".