22655983393 has 4 divisors (see below), whose sum is σ = 22697861908. Its totient is φ = 22614104880.

The previous prime is 22655983391. The next prime is 22655983409. The reversal of 22655983393 is 39338955622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9453283984 + 13202699409 = 97228^2 + 114903^2 .

It is a cyclic number.

It is not a de Polignac number, because 22655983393 - 2¹ = 22655983391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22655983391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20938446 + ... + 20939527.

It is an arithmetic number, because the mean of its divisors is an integer number (5674465477).

Almost surely, 2^22655983393 is an apocalyptic number.

It is an amenable number.

22655983393 is a deficient number, since it is larger than the sum of its proper divisors (41878515).

22655983393 is an equidigital number, since it uses as much as digits as its factorization.

22655983393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41878514.

The product of its digits is 10497600, while the sum is 55.

The spelling of 22655983393 in words is "twenty-two billion, six hundred fifty-five million, nine hundred eighty-three thousand, three hundred ninety-three".