20068065 has 48 divisors (see below), whose sum is σ = 36363600. Its totient is φ = 10229760.

The previous prime is 20068063. The next prime is 20068073. The reversal of 20068065 is 56086002.

It can be written as a sum of positive squares in 8 ways, for example, as 5253264 + 14814801 = 2292^2 + 3849^2 .

It is not a de Polignac number, because 20068065 - 2¹ = 20068063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20068063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134611 + ... + 134759.

It is an arithmetic number, because the mean of its divisors is an integer number (757575).

Almost surely, 2^20068065 is an apocalyptic number.

It is an amenable number.

20068065 is a deficient number, since it is larger than the sum of its proper divisors (16295535).

20068065 is a wasteful number, since it uses less digits than its factorization.

20068065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 20068065 is about 4479.7393897413. The cubic root of 20068065 is about 271.7493410582.

It can be divided in two parts, 200 and 68065, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 20068065 in words is "twenty million, sixty-eight thousand, sixty-five".