83220000261 has 16 divisors (see below), whose sum is σ = 119478369600. Its totient is φ = 51331443968.

The previous prime is 83220000257. The next prime is 83220000317. The reversal of 83220000261 is 16200002238.

It is not a de Polignac number, because 83220000261 - 2² = 83220000257 is a prime.

It is a super-3 number, since 3×83220000261³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83220000211) 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, 13825506 + ... + 13831523.

It is an arithmetic number, because the mean of its divisors is an integer number (7467398100).

Almost surely, 2^83220000261 is an apocalyptic number.

It is an amenable number.

83220000261 is a deficient number, since it is larger than the sum of its proper divisors (36258369339).

83220000261 is a wasteful number, since it uses less digits than its factorization.

83220000261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27657108.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 83220000261 its reverse (16200002238), we get a palindrome (99420002499).

The spelling of 83220000261 in words is "eighty-three billion, two hundred twenty million, two hundred sixty-one", and thus it is an aban number.