22065137850 has 96 divisors (see below), whose sum is σ = 62573852160. Its totient is φ = 5040642240.

The previous prime is 22065137797. The next prime is 22065137851. The reversal of 22065137850 is 5873156022.

It is a junction number, because it is equal to n+sod(n) for n = 22065137799 and 22065137808.

It is not an unprimeable number, because it can be changed into a prime (22065137851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2308381 + ... + 2317919.

It is an arithmetic number, because the mean of its divisors is an integer number (651810960).

Almost surely, 2^22065137850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22065137850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31286926080).

22065137850 is an abundant number, since it is smaller than the sum of its proper divisors (40508714310).

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

22065137850 is a wasteful number, since it uses less digits than its factorization.

22065137850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11764 (or 11759 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 22065137850 in words is "twenty-two billion, sixty-five million, one hundred thirty-seven thousand, eight hundred fifty".