83161966 has 16 divisors (see below), whose sum is σ = 129924000. Its totient is φ = 39873568.

The previous prime is 83161961. The next prime is 83161987. The reversal of 83161966 is 66916138.

It is a super-3 number, since 3×83161966³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83161961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3831 + ... + 13453.

It is an arithmetic number, because the mean of its divisors is an integer number (8120250).

Almost surely, 2^83161966 is an apocalyptic number.

83161966 is a deficient number, since it is larger than the sum of its proper divisors (46762034).

83161966 is a wasteful number, since it uses less digits than its factorization.

83161966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9803.

The product of its digits is 46656, while the sum is 40.

The square root of 83161966 is about 9119.3182859247. The cubic root of 83161966 is about 436.4906205901.

The spelling of 83161966 in words is "eighty-three million, one hundred sixty-one thousand, nine hundred sixty-six".