22045660304940 has 480 divisors, whose sum is σ = 72644507679744. Its totient is φ = 5586000330240.

The previous prime is 22045660304909. The next prime is 22045660304981. The reversal of 22045660304940 is 4940306654022.

22045660304940 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 566 + 0 + 3 + 0 + 49 + 40 = 666.

It is a super-2 number, since 2×22045660304940² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3557469922 + ... + 3557476118.

Almost surely, 2^{22045660304940} is an apocalyptic number.

22045660304940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22045660304940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36322253839872).

22045660304940 is an abundant number, since it is smaller than the sum of its proper divisors (50598847374804).

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

22045660304940 is a wasteful number, since it uses less digits than its factorization.

22045660304940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6859 (or 6848 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

Adding to 22045660304940 its reverse (4940306654022), we get a palindrome (26985966958962).

The spelling of 22045660304940 in words is "twenty-two trillion, forty-five billion, six hundred sixty million, three hundred four thousand, nine hundred forty".