20302403659 has 16 divisors (see below), whose sum is σ = 21641518080. Its totient is φ = 18990629280.

The previous prime is 20302403651. The next prime is 20302403701. The reversal of 20302403659 is 95630420302.

It is a cyclic number.

It is not a de Polignac number, because 20302403659 - 2³ = 20302403651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302403651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3752134 + ... + 3757540.

It is an arithmetic number, because the mean of its divisors is an integer number (1352594880).

Almost surely, 2^20302403659 is an apocalyptic number.

20302403659 is a deficient number, since it is larger than the sum of its proper divisors (1339114421).

20302403659 is a wasteful number, since it uses less digits than its factorization.

20302403659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 20302403659 in words is "twenty billion, three hundred two million, four hundred three thousand, six hundred fifty-nine".