22233577780 has 12 divisors (see below), whose sum is σ = 46690513380. Its totient is φ = 8893431104.

The previous prime is 22233577777. The next prime is 22233577781. The reversal of 22233577780 is 8777533222.

It can be written as a sum of positive squares in 2 ways, for example, as 2911465764 + 19322112016 = 53958^2 + 139004^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22233577780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233577781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555839425 + ... + 555839464.

It is an arithmetic number, because the mean of its divisors is an integer number (3890876115).

Almost surely, 2^22233577780 is an apocalyptic number.

22233577780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22233577780 is an abundant number, since it is smaller than the sum of its proper divisors (24456935600).

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

22233577780 is a wasteful number, since it uses less digits than its factorization.

22233577780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111678898 (or 1111678896 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 22233577780 in words is "twenty-two billion, two hundred thirty-three million, five hundred seventy-seven thousand, seven hundred eighty".