83133939158161 has 2 divisors, whose sum is σ = 83133939158162. Its totient is φ = 83133939158160.

The previous prime is 83133939158143. The next prime is 83133939158183. The reversal of 83133939158161 is 16185193933138.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62020649351761 + 21113289806400 = 7875319^2 + 4594920^2 .

It is a cyclic number.

It is not a de Polignac number, because 83133939158161 - 2⁷ = 83133939158033 is a prime.

It is a super-2 number, since 2×83133939158161² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83133939158161.

It is not a weakly prime, because it can be changed into another prime (83133939158461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41566969579080 + 41566969579081.

It is an arithmetic number, because the mean of its divisors is an integer number (41566969579081).

Almost surely, 2^{83133939158161} is an apocalyptic number.

It is an amenable number.

83133939158161 is a deficient number, since it is larger than the sum of its proper divisors (1).

83133939158161 is an equidigital number, since it uses as much as digits as its factorization.

83133939158161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 61.

The spelling of 83133939158161 in words is "eighty-three trillion, one hundred thirty-three billion, nine hundred thirty-nine million, one hundred fifty-eight thousand, one hundred sixty-one".