36666161 has 12 divisors (see below), whose sum is σ = 45162468. Its totient is φ = 29578752.

The previous prime is 36666109. The next prime is 36666167. The reversal of 36666161 is 16166663.

It can be written as a sum of positive squares in 2 ways, for example, as 28826161 + 7840000 = 5369^2 + 2800^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36666161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36666167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21176 + ... + 22841.

It is an arithmetic number, because the mean of its divisors is an integer number (3763539).

Almost surely, 2^36666161 is an apocalyptic number.

It is an amenable number.

36666161 is a deficient number, since it is larger than the sum of its proper divisors (8496307).

36666161 is a wasteful number, since it uses less digits than its factorization.

36666161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44048 (or 44041 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 36666161 is about 6055.2589540002. The cubic root of 36666161 is about 332.2169705988.

The spelling of 36666161 in words is "thirty-six million, six hundred sixty-six thousand, one hundred sixty-one".