22108664 has 8 divisors (see below), whose sum is σ = 41453760. Its totient is φ = 11054328.

The previous prime is 22108651. The next prime is 22108693. The reversal of 22108664 is 46680122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1381784 + ... + 1381799.

It is an arithmetic number, because the mean of its divisors is an integer number (5181720).

Almost surely, 2^22108664 is an apocalyptic number.

It is an amenable number.

22108664 is a deficient number, since it is larger than the sum of its proper divisors (19345096).

22108664 is a wasteful number, since it uses less digits than its factorization.

22108664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763589 (or 2763585 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22108664 is about 4701.9851126944. The cubic root of 22108664 is about 280.6645101388.

Adding to 22108664 its reverse (46680122), we get a palindrome (68788786).

The spelling of 22108664 in words is "twenty-two million, one hundred eight thousand, six hundred sixty-four".