22777777320 has 64 divisors (see below), whose sum is σ = 69787249920. Its totient is φ = 5944836864.

The previous prime is 22777777259. The next prime is 22777777343. The reversal of 22777777320 is 2377777722.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2013667 + ... + 2024946.

It is an arithmetic number, because the mean of its divisors is an integer number (1090425780).

Almost surely, 2^22777777320 is an apocalyptic number.

22777777320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22777777320 is an abundant number, since it is smaller than the sum of its proper divisors (47009472600).

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

22777777320 is a wasteful number, since it uses less digits than its factorization.

22777777320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038674 (or 4038670 counting only the distinct ones).

The product of its (nonzero) digits is 2823576, while the sum is 51.

The spelling of 22777777320 in words is "twenty-two billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, three hundred twenty".