22278470880 has 96 divisors (see below), whose sum is σ = 71165703168. Its totient is φ = 5857241600.

The previous prime is 22278470867. The next prime is 22278470923. The reversal of 22278470880 is 8807487222.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 292776 + ... + 360935.

It is an arithmetic number, because the mean of its divisors is an integer number (741309408).

Almost surely, 2^22278470880 is an apocalyptic number.

22278470880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22278470880 is an abundant number, since it is smaller than the sum of its proper divisors (48887232288).

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

22278470880 is a wasteful number, since it uses less digits than its factorization.

22278470880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653800 (or 653792 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 48.

The spelling of 22278470880 in words is "twenty-two billion, two hundred seventy-eight million, four hundred seventy thousand, eight hundred eighty".