22245556788889 has 8 divisors (see below), whose sum is σ = 25442739125888. Its totient is φ = 19053185865120.

The previous prime is 22245556788869. The next prime is 22245556788991. The reversal of 22245556788889 is 98888765554222.

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

It is a cyclic number.

It is not a de Polignac number, because 22245556788889 - 2¹⁷ = 22245556657817 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22245556788869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202843397 + ... + 1202861890.

It is an arithmetic number, because the mean of its divisors is an integer number (3180342390736).

Almost surely, 2^{22245556788889} is an apocalyptic number.

It is an amenable number.

22245556788889 is a deficient number, since it is larger than the sum of its proper divisors (3197182336999).

22245556788889 is a wasteful number, since it uses less digits than its factorization.

22245556788889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405706615.

The product of its digits is 6193152000, while the sum is 79.

The spelling of 22245556788889 in words is "twenty-two trillion, two hundred forty-five billion, five hundred fifty-six million, seven hundred eighty-eight thousand, eight hundred eighty-nine".