22551118898 has 64 divisors (see below), whose sum is σ = 42429284352. Its totient is φ = 8733070080.

The previous prime is 22551118897. The next prime is 22551118921. The reversal of 22551118898 is 89881115522.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22551118897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25538765 + ... + 25539647.

It is an arithmetic number, because the mean of its divisors is an integer number (662957568).

Almost surely, 2^22551118898 is an apocalyptic number.

22551118898 is a deficient number, since it is larger than the sum of its proper divisors (19878165454).

22551118898 is a wasteful number, since it uses less digits than its factorization.

22551118898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its digits is 460800, while the sum is 50.

The spelling of 22551118898 in words is "twenty-two billion, five hundred fifty-one million, one hundred eighteen thousand, eight hundred ninety-eight".