20133566622 has 96 divisors (see below), whose sum is σ = 48758673600. Its totient is φ = 5961586176.

The previous prime is 20133566591. The next prime is 20133566623. The reversal of 20133566622 is 22666533102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133566623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2119279 + ... + 2128757.

It is an arithmetic number, because the mean of its divisors is an integer number (507902850).

Almost surely, 2^20133566622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20133566622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24379336800).

20133566622 is an abundant number, since it is smaller than the sum of its proper divisors (28625106978).

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

20133566622 is a wasteful number, since it uses less digits than its factorization.

20133566622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9842 (or 9839 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 20133566622 in words is "twenty billion, one hundred thirty-three million, five hundred sixty-six thousand, six hundred twenty-two".