20676165 has 16 divisors (see below), whose sum is σ = 35028288. Its totient is φ = 10378496.

The previous prime is 20676151. The next prime is 20676167. The reversal of 20676165 is 56167602.

It is a cyclic number.

It is not a de Polignac number, because 20676165 - 2⁷ = 20676037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20676167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40287 + ... + 40796.

It is an arithmetic number, because the mean of its divisors is an integer number (2189268).

Almost surely, 2^20676165 is an apocalyptic number.

It is an amenable number.

20676165 is a deficient number, since it is larger than the sum of its proper divisors (14352123).

20676165 is a wasteful number, since it uses less digits than its factorization.

20676165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81108.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20676165 is about 4547.1051230426. The cubic root of 20676165 is about 274.4669121800.

The spelling of 20676165 in words is "twenty million, six hundred seventy-six thousand, one hundred sixty-five".