22665237551 has 4 divisors (see below), whose sum is σ = 24725713704. Its totient is φ = 20604761400.

The previous prime is 22665237527. The next prime is 22665237563. The reversal of 22665237551 is 15573256622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22665237551 - 2¹⁸ = 22664975407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22665239551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1030238060 + ... + 1030238081.

It is an arithmetic number, because the mean of its divisors is an integer number (6181428426).

Almost surely, 2^22665237551 is an apocalyptic number.

22665237551 is a deficient number, since it is larger than the sum of its proper divisors (2060476153).

22665237551 is a wasteful number, since it uses less digits than its factorization.

22665237551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060476152.

The product of its digits is 756000, while the sum is 44.

The spelling of 22665237551 in words is "twenty-two billion, six hundred sixty-five million, two hundred thirty-seven thousand, five hundred fifty-one".