22143377144 has 72 divisors (see below), whose sum is σ = 50489076960. Its totient is φ = 9077324256.

The previous prime is 22143377131. The next prime is 22143377147. The reversal of 22143377144 is 44177334122.

It is a junction number, because it is equal to n+sod(n) for n = 22143377098 and 22143377107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143377147) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 153977 + ... + 260759.

It is an arithmetic number, because the mean of its divisors is an integer number (701237180).

Almost surely, 2^22143377144 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 22143377144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25244538480).

22143377144 is an abundant number, since it is smaller than the sum of its proper divisors (28345699816).

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

22143377144 is a wasteful number, since it uses less digits than its factorization.

22143377144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106849 (or 106815 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The spelling of 22143377144 in words is "twenty-two billion, one hundred forty-three million, three hundred seventy-seven thousand, one hundred forty-four".