22245677780 has 24 divisors (see below), whose sum is σ = 46720019808. Its totient is φ = 8897490848.

The previous prime is 22245677761. The next prime is 22245677801. The reversal of 22245677780 is 8777654222.

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, 221567 + ... + 305913.

It is an arithmetic number, because the mean of its divisors is an integer number (1946667492).

Almost surely, 2^22245677780 is an apocalyptic number.

22245677780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22245677780 is an abundant number, since it is smaller than the sum of its proper divisors (24474342028).

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

22245677780 is a wasteful number, since it uses less digits than its factorization.

22245677780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97543 (or 97541 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 22245677780 in words is "twenty-two billion, two hundred forty-five million, six hundred seventy-seven thousand, seven hundred eighty".