20722525430066 has 8 divisors (see below), whose sum is σ = 31100952031344. Its totient is φ = 10355541419620.

The previous prime is 20722525430051. The next prime is 20722525430119. The reversal of 20722525430066 is 66003452522702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20722525429999 and 20722525430026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2860643180 + ... + 2860650423.

It is an arithmetic number, because the mean of its divisors is an integer number (3887619003918).

Almost surely, 2^{20722525430066} is an apocalyptic number.

20722525430066 is a deficient number, since it is larger than the sum of its proper divisors (10378426601278).

20722525430066 is a wasteful number, since it uses less digits than its factorization.

20722525430066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721295416.

The product of its (nonzero) digits is 1209600, while the sum is 44.

Adding to 20722525430066 its reverse (66003452522702), we get a palindrome (86725977952768).

The spelling of 20722525430066 in words is "twenty trillion, seven hundred twenty-two billion, five hundred twenty-five million, four hundred thirty thousand, sixty-six".