20266859792 has 40 divisors (see below), whose sum is σ = 39421854816. Its totient is φ = 10093545216.

The previous prime is 20266859741. The next prime is 20266859797. The reversal of 20266859792 is 29795866202.

It is not an unprimeable number, because it can be changed into a prime (20266859797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9198563 + ... + 9200765.

Almost surely, 2^20266859792 is an apocalyptic number.

It is an amenable number.

20266859792 is a deficient number, since it is larger than the sum of its proper divisors (19154995024).

20266859792 is a wasteful number, since it uses less digits than its factorization.

20266859792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 20266859792 in words is "twenty billion, two hundred sixty-six million, eight hundred fifty-nine thousand, seven hundred ninety-two".