20023304466 has 64 divisors (see below), whose sum is σ = 44338720896. Its totient is φ = 5977382400.

The previous prime is 20023304453. The next prime is 20023304501. The reversal of 20023304466 is 66440332002.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5109940 + ... + 5113856.

It is an arithmetic number, because the mean of its divisors is an integer number (692792514).

Almost surely, 2^20023304466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023304466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22169360448).

20023304466 is an abundant number, since it is smaller than the sum of its proper divisors (24315416430).

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

20023304466 is a wasteful number, since it uses less digits than its factorization.

20023304466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20023304466 its reverse (66440332002), we get a palindrome (86463636468).

The spelling of 20023304466 in words is "twenty billion, twenty-three million, three hundred four thousand, four hundred sixty-six".