22066611 has 24 divisors (see below), whose sum is σ = 35031744. Its totient is φ = 12312720.

The previous prime is 22066573. The next prime is 22066613. The reversal of 22066611 is 11666022.

It is not a de Polignac number, because 22066611 - 2⁷ = 22066483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22066613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4576 + ... + 8066.

It is an arithmetic number, because the mean of its divisors is an integer number (1459656).

Almost surely, 2^22066611 is an apocalyptic number.

22066611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22066611 is a deficient number, since it is larger than the sum of its proper divisors (12965133).

22066611 is a wasteful number, since it uses less digits than its factorization.

22066611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 3544 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22066611 is about 4697.5111495344. The cubic root of 22066611 is about 280.4864460709.

The spelling of 22066611 in words is "twenty-two million, sixty-six thousand, six hundred eleven".