22051504140 has 24 divisors (see below), whose sum is σ = 61744211760. Its totient is φ = 5880401088.

The previous prime is 22051504099. The next prime is 22051504141. The reversal of 22051504140 is 4140515022.

It is a self number, because there is not a number n which added to its sum of digits gives 22051504140.

It is not an unprimeable number, because it can be changed into a prime (22051504141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183762475 + ... + 183762594.

It is an arithmetic number, because the mean of its divisors is an integer number (2572675490).

Almost surely, 2^22051504140 is an apocalyptic number.

22051504140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22051504140 is an abundant number, since it is smaller than the sum of its proper divisors (39692707620).

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

22051504140 is a wasteful number, since it uses less digits than its factorization.

22051504140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367525081 (or 367525079 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 22051504140 in words is "twenty-two billion, fifty-one million, five hundred four thousand, one hundred forty".