22111473664 has 104 divisors (see below), whose sum is σ = 52166578688. Its totient is φ = 9170288640.

The previous prime is 22111473641. The next prime is 22111473673. The reversal of 22111473664 is 46637411122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876394 + ... + 901270.

Almost surely, 2^22111473664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22111473664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26083289344).

22111473664 is an abundant number, since it is smaller than the sum of its proper divisors (30055105024).

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

22111473664 is an equidigital number, since it uses as much as digits as its factorization.

22111473664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24939 (or 24917 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

Adding to 22111473664 its reverse (46637411122), we get a palindrome (68748884786).

The spelling of 22111473664 in words is "twenty-two billion, one hundred eleven million, four hundred seventy-three thousand, six hundred sixty-four".