20320200061 has 8 divisors (see below), whose sum is σ = 23400362304. Its totient is φ = 17284356960.

The previous prime is 20320200059. The next prime is 20320200067. The reversal of 20320200061 is 16000202302.

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 20320200061 - 2¹ = 20320200059 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 (20320200067) 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, 11078800 + ... + 11080633.

It is an arithmetic number, because the mean of its divisors is an integer number (2925045288).

Almost surely, 2^20320200061 is an apocalyptic number.

It is an amenable number.

20320200061 is a deficient number, since it is larger than the sum of its proper divisors (3080162243).

20320200061 is a wasteful number, since it uses less digits than its factorization.

20320200061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22159571.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20320200061 its reverse (16000202302), we get a palindrome (36320402363).

The spelling of 20320200061 in words is "twenty billion, three hundred twenty million, two hundred thousand, sixty-one".