6696161 has 4 divisors (see below), whose sum is σ = 6859524. Its totient is φ = 6532800.

The previous prime is 6696143. The next prime is 6696163. The reversal of 6696161 is 1616966.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 664225 + 6031936 = 815^2 + 2456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6696161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6696163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81620 + ... + 81701.

It is an arithmetic number, because the mean of its divisors is an integer number (1714881).

Almost surely, 2^6696161 is an apocalyptic number.

It is an amenable number.

6696161 is a deficient number, since it is larger than the sum of its proper divisors (163363).

6696161 is a wasteful number, since it uses less digits than its factorization.

6696161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163362.

The product of its digits is 11664, while the sum is 35.

The square root of 6696161 is about 2587.6941473057. The cubic root of 6696161 is about 188.4843497714.

The spelling of 6696161 in words is "six million, six hundred ninety-six thousand, one hundred sixty-one".