22661616 has 40 divisors (see below), whose sum is σ = 58902480. Its totient is φ = 7507456.

The previous prime is 22661603. The next prime is 22661633. The reversal of 22661616 is 61616622.

It is a nude number because it is divisible by every one of its digits.

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 in 7 ways as a sum of consecutive naturals, for example, 6940 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (1472562).

Almost surely, 2^22661616 is an apocalyptic number.

It is an amenable number.

22661616 is an abundant number, since it is smaller than the sum of its proper divisors (36240864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22661616 is a wasteful number, since it uses less digits than its factorization.

22661616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913 (or 2907 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 22661616 is about 4760.4218300483. The cubic root of 22661616 is about 282.9851365874.

The spelling of 22661616 in words is "twenty-two million, six hundred sixty-one thousand, six hundred sixteen".