20021675259 has 8 divisors (see below), whose sum is σ = 26744372800. Its totient is φ = 13323380616.

The previous prime is 20021675213. The next prime is 20021675269. The reversal of 20021675259 is 95257612002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20021675259 - 2⁷ = 20021675131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021675269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6098809 + ... + 6102090.

It is an arithmetic number, because the mean of its divisors is an integer number (3343046600).

Almost surely, 2^20021675259 is an apocalyptic number.

20021675259 is a deficient number, since it is larger than the sum of its proper divisors (6722697541).

20021675259 is a wasteful number, since it uses less digits than its factorization.

20021675259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12201449.

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 20021675259 in words is "twenty billion, twenty-one million, six hundred seventy-five thousand, two hundred fifty-nine".