20083421617 has 8 divisors (see below), whose sum is σ = 22953580736. Its totient is φ = 17213537232.

The previous prime is 20083421581. The next prime is 20083421669. The reversal of 20083421617 is 71612438002.

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

It is a cyclic number.

It is not a de Polignac number, because 20083421617 - 2¹⁵ = 20083388849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20083721617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124018 + ... + 235684.

It is an arithmetic number, because the mean of its divisors is an integer number (2869197592).

Almost surely, 2^20083421617 is an apocalyptic number.

It is an amenable number.

20083421617 is a deficient number, since it is larger than the sum of its proper divisors (2870159119).

20083421617 is a wasteful number, since it uses less digits than its factorization.

20083421617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137367.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 20083421617 its reverse (71612438002), we get a palindrome (91695859619).

The spelling of 20083421617 in words is "twenty billion, eighty-three million, four hundred twenty-one thousand, six hundred seventeen".