83339916181 has 2 divisors, whose sum is σ = 83339916182. Its totient is φ = 83339916180.

The previous prime is 83339916173. The next prime is 83339916211. The reversal of 83339916181 is 18161993338.

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., 59515993681 + 23823922500 = 243959^2 + 154350^2 .

It is a cyclic number.

It is not a de Polignac number, because 83339916181 - 2³ = 83339916173 is a prime.

It is a super-2 number, since 2×83339916181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83339916281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41669958090 + 41669958091.

It is an arithmetic number, because the mean of its divisors is an integer number (41669958091).

Almost surely, 2^83339916181 is an apocalyptic number.

It is an amenable number.

83339916181 is a deficient number, since it is larger than the sum of its proper divisors (1).

83339916181 is an equidigital number, since it uses as much as digits as its factorization.

83339916181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 52.

The spelling of 83339916181 in words is "eighty-three billion, three hundred thirty-nine million, nine hundred sixteen thousand, one hundred eighty-one".