20600065 has 16 divisors (see below), whose sum is σ = 25929216. Its totient is φ = 15681600.

The previous prime is 20600057. The next prime is 20600087. The reversal of 20600065 is 56000602.

It is not a de Polignac number, because 20600065 - 2³ = 20600057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30835 + ... + 31495.

It is an arithmetic number, because the mean of its divisors is an integer number (1620576).

Almost surely, 2^20600065 is an apocalyptic number.

It is an amenable number.

20600065 is a deficient number, since it is larger than the sum of its proper divisors (5329151).

20600065 is a wasteful number, since it uses less digits than its factorization.

20600065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20600065 is about 4538.7294477640. The cubic root of 20600065 is about 274.1297669729.

Adding to 20600065 its reverse (56000602), we get a palindrome (76600667).

The spelling of 20600065 in words is "twenty million, six hundred thousand, sixty-five".