22180385016 has 24 divisors (see below), whose sum is σ = 60071876280. Its totient is φ = 7393461648.

The previous prime is 22180384997. The next prime is 22180385023. The reversal of 22180385016 is 61058308122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154030380 + ... + 154030523.

It is an arithmetic number, because the mean of its divisors is an integer number (2502994845).

Almost surely, 2^22180385016 is an apocalyptic number.

It is an amenable number.

22180385016 is an abundant number, since it is smaller than the sum of its proper divisors (37891491264).

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

22180385016 is a wasteful number, since it uses less digits than its factorization.

22180385016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308060915 (or 308060908 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 22180385016 in words is "twenty-two billion, one hundred eighty million, three hundred eighty-five thousand, sixteen".