22245666790 has 16 divisors (see below), whose sum is σ = 40043915568. Its totient is φ = 8897885536.

The previous prime is 22245666731. The next prime is 22245666791. The reversal of 22245666790 is 9766654222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22245666791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381624 + ... + 436036.

It is an arithmetic number, because the mean of its divisors is an integer number (2502744723).

Almost surely, 2^22245666790 is an apocalyptic number.

22245666790 is a deficient number, since it is larger than the sum of its proper divisors (17798248778).

22245666790 is a wasteful number, since it uses less digits than its factorization.

22245666790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95303.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 22245666790 in words is "twenty-two billion, two hundred forty-five million, six hundred sixty-six thousand, seven hundred ninety".