83668161 has 8 divisors (see below), whose sum is σ = 115404480. Its totient is φ = 53855312.

The previous prime is 83668141. The next prime is 83668171. The reversal of 83668161 is 16186638.

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 83668161 - 2⁵ = 83668129 is a prime.

It is a super-2 number, since 2×83668161² = 14000722330243842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83668121) 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, 480765 + ... + 480938.

It is an arithmetic number, because the mean of its divisors is an integer number (14425560).

Almost surely, 2^83668161 is an apocalyptic number.

It is an amenable number.

83668161 is a deficient number, since it is larger than the sum of its proper divisors (31736319).

83668161 is a wasteful number, since it uses less digits than its factorization.

83668161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961735.

The product of its digits is 41472, while the sum is 39.

The square root of 83668161 is about 9147.0301737777. The cubic root of 83668161 is about 437.3744484359.

The spelling of 83668161 in words is "eighty-three million, six hundred sixty-eight thousand, one hundred sixty-one".