22498177980 has 48 divisors (see below), whose sum is σ = 63015321600. Its totient is φ = 5997569088.

The previous prime is 22498177969. The next prime is 22498177981. The reversal of 22498177980 is 8977189422.

It is a self number, because there is not a number n which added to its sum of digits gives 22498177980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22498177981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130821 + ... + 249219.

It is an arithmetic number, because the mean of its divisors is an integer number (1312819200).

Almost surely, 2^22498177980 is an apocalyptic number.

22498177980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22498177980 is an abundant number, since it is smaller than the sum of its proper divisors (40517143620).

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

22498177980 is a wasteful number, since it uses less digits than its factorization.

22498177980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121578 (or 121576 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 22498177980 in words is "twenty-two billion, four hundred ninety-eight million, one hundred seventy-seven thousand, nine hundred eighty".