20336866837 has 16 divisors (see below), whose sum is σ = 23537850112. Its totient is φ = 17210672640.

The previous prime is 20336866829. The next prime is 20336866877. The reversal of 20336866837 is 73866863302.

It is not a de Polignac number, because 20336866837 - 2³ = 20336866829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20336866807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250288 + ... + 321430.

It is an arithmetic number, because the mean of its divisors is an integer number (1471115632).

Almost surely, 2^20336866837 is an apocalyptic number.

It is an amenable number.

20336866837 is a deficient number, since it is larger than the sum of its proper divisors (3200983275).

20336866837 is an equidigital number, since it uses as much as digits as its factorization.

20336866837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71668.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 20336866837 in words is "twenty billion, three hundred thirty-six million, eight hundred sixty-six thousand, eight hundred thirty-seven".