22068290916 has 243 divisors, whose sum is σ = 67901984787. Its totient is φ = 6257094480.

The previous prime is 22068290897. The next prime is 22068290917. The reversal of 22068290916 is 61909286022.

The square root of 22068290916 is 148554.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (243).

It is not an unprimeable number, because it can be changed into a prime (22068290917) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 168460171 + ... + 168460301.

Almost surely, 2^22068290916 is an apocalyptic number.

22068290916 is the 148554-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22068290916

22068290916 is an abundant number, since it is smaller than the sum of its proper divisors (45833693871).

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

22068290916 is an frugal number, since it uses more digits than its factorization.

22068290916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 22068290916 in words is "twenty-two billion, sixty-eight million, two hundred ninety thousand, nine hundred sixteen".