20023256676 has 96 divisors (see below), whose sum is σ = 50812489728. Its totient is φ = 6112350720.

The previous prime is 20023256623. The next prime is 20023256789. The reversal of 20023256676 is 67665232002.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2373001 + ... + 2381423.

It is an arithmetic number, because the mean of its divisors is an integer number (529296768).

Almost surely, 2^20023256676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023256676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25406244864).

20023256676 is an abundant number, since it is smaller than the sum of its proper divisors (30789233052).

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

20023256676 is a wasteful number, since it uses less digits than its factorization.

20023256676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761 (or 8759 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

Adding to 20023256676 its reverse (67665232002), we get a palindrome (87688488678).

The spelling of 20023256676 in words is "twenty billion, twenty-three million, two hundred fifty-six thousand, six hundred seventy-six".