20701165 has 8 divisors (see below), whose sum is σ = 26148960. Its totient is φ = 15689232.

The previous prime is 20701159. The next prime is 20701169. The reversal of 20701165 is 56110702.

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 20701165 - 2¹⁵ = 20668397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108859 + ... + 109048.

It is an arithmetic number, because the mean of its divisors is an integer number (3268620).

Almost surely, 2^20701165 is an apocalyptic number.

It is an amenable number.

20701165 is a deficient number, since it is larger than the sum of its proper divisors (5447795).

20701165 is a wasteful number, since it uses less digits than its factorization.

20701165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217931.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 20701165 is about 4549.8532943382. The cubic root of 20701165 is about 274.5774889258.

Adding to 20701165 its reverse (56110702), we get a palindrome (76811867).

The spelling of 20701165 in words is "twenty million, seven hundred one thousand, one hundred sixty-five".