22666655 has 16 divisors (see below), whose sum is σ = 29804544. Its totient is φ = 16411680.

The previous prime is 22666621. The next prime is 22666663. The reversal of 22666655 is 55666622.

It is not a de Polignac number, because 22666655 - 2¹² = 22662559 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13682 + ... + 15248.

It is an arithmetic number, because the mean of its divisors is an integer number (1862784).

Almost surely, 2^22666655 is an apocalyptic number.

22666655 is a deficient number, since it is larger than the sum of its proper divisors (7137889).

22666655 is a wasteful number, since it uses less digits than its factorization.

22666655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846.

The product of its digits is 129600, while the sum is 38.

The square root of 22666655 is about 4760.9510604500. The cubic root of 22666655 is about 283.0061097375.

The spelling of 22666655 in words is "twenty-two million, six hundred sixty-six thousand, six hundred fifty-five".