22553221506 has 8 divisors (see below), whose sum is σ = 45106443024. Its totient is φ = 7517740500.

The previous prime is 22553221459. The next prime is 22553221541. The reversal of 22553221506 is 60512235522.

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

22553221506 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 1879435120 + ... + 1879435131.

It is an arithmetic number, because the mean of its divisors is an integer number (5638305378).

Almost surely, 2^22553221506 is an apocalyptic number.

22553221506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22553221506 is a wasteful number, since it uses less digits than its factorization.

22553221506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758870256.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 22553221506 in words is "twenty-two billion, five hundred fifty-three million, two hundred twenty-one thousand, five hundred six".