22601665 has 8 divisors (see below), whose sum is σ = 27195840. Its totient is φ = 18032112.

The previous prime is 22601633. The next prime is 22601681. The reversal of 22601665 is 56610622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22601665 - 2⁵ = 22601633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4069 + ... + 7858.

It is an arithmetic number, because the mean of its divisors is an integer number (3399480).

Almost surely, 2^22601665 is an apocalyptic number.

It is an amenable number.

22601665 is a deficient number, since it is larger than the sum of its proper divisors (4594175).

22601665 is a wasteful number, since it uses less digits than its factorization.

22601665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12311.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 22601665 is about 4754.1208440678. The cubic root of 22601665 is about 282.7353717517.

The spelling of 22601665 in words is "twenty-two million, six hundred one thousand, six hundred sixty-five".