22446100555 has 4 divisors (see below), whose sum is σ = 26935320672. Its totient is φ = 17956880440.

The previous prime is 22446100493. The next prime is 22446100559. The reversal of 22446100555 is 55500164422.

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

It is a de Polignac number, because none of the positive numbers 2^k-22446100555 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22446100555.

It is not an unprimeable number, because it can be changed into a prime (22446100559) 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, 2244610051 + ... + 2244610060.

It is an arithmetic number, because the mean of its divisors is an integer number (6733830168).

Almost surely, 2^22446100555 is an apocalyptic number.

22446100555 is a deficient number, since it is larger than the sum of its proper divisors (4489220117).

22446100555 is an equidigital number, since it uses as much as digits as its factorization.

22446100555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489220116.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 22446100555 its reverse (55500164422), we get a palindrome (77946264977).

The spelling of 22446100555 in words is "twenty-two billion, four hundred forty-six million, one hundred thousand, five hundred fifty-five".