20207338799 has 4 divisors (see below), whose sum is σ = 20211029736. Its totient is φ = 20203647864.

The previous prime is 20207338777. The next prime is 20207338807. The reversal of 20207338799 is 99783370202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20207338799 - 2¹² = 20207334703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20207338199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837244 + ... + 1848209.

It is an arithmetic number, because the mean of its divisors is an integer number (5052757434).

Almost surely, 2^20207338799 is an apocalyptic number.

20207338799 is a deficient number, since it is larger than the sum of its proper divisors (3690937).

20207338799 is an equidigital number, since it uses as much as digits as its factorization.

20207338799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690936.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 20207338799 in words is "twenty billion, two hundred seven million, three hundred thirty-eight thousand, seven hundred ninety-nine".