20266310799 has 12 divisors (see below), whose sum is σ = 33455497296. Its totient is φ = 11580748992.

The previous prime is 20266310767. The next prime is 20266310809. The reversal of 20266310799 is 99701366202.

It is a happy number.

20266310799 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 631 + 0 + 7 + 9 + 9 = 666.

It is not a de Polignac number, because 20266310799 - 2⁵ = 20266310767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266310299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160843674 + ... + 160843799.

It is an arithmetic number, because the mean of its divisors is an integer number (2787958108).

Almost surely, 2^20266310799 is an apocalyptic number.

20266310799 is a deficient number, since it is larger than the sum of its proper divisors (13189186497).

20266310799 is a wasteful number, since it uses less digits than its factorization.

20266310799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321687486 (or 321687483 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 20266310799 in words is "twenty billion, two hundred sixty-six million, three hundred ten thousand, seven hundred ninety-nine".