22051497144 has 16 divisors (see below), whose sum is σ = 55128742920. Its totient is φ = 7350499040.

The previous prime is 22051497103. The next prime is 22051497163. The reversal of 22051497144 is 44179415022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459406167 + ... + 459406214.

Almost surely, 2^22051497144 is an apocalyptic number.

22051497144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22051497144 is an abundant number, since it is smaller than the sum of its proper divisors (33077245776).

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

22051497144 is a wasteful number, since it uses less digits than its factorization.

22051497144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918812390 (or 918812386 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 22051497144 in words is "twenty-two billion, fifty-one million, four hundred ninety-seven thousand, one hundred forty-four".