20662063 has 8 divisors (see below), whose sum is σ = 22075520. Its totient is φ = 19281240.

The previous prime is 20662051. The next prime is 20662079. The reversal of 20662063 is 36026602.

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 20662063 - 2⁹ = 20661551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6843 + ... + 9388.

It is an arithmetic number, because the mean of its divisors is an integer number (2759440).

Almost surely, 2^20662063 is an apocalyptic number.

20662063 is a deficient number, since it is larger than the sum of its proper divisors (1413457).

20662063 is a wasteful number, since it uses less digits than its factorization.

20662063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16317.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20662063 is about 4545.5542016348. The cubic root of 20662063 is about 274.4044987249.

Adding to 20662063 its reverse (36026602), we get a palindrome (56688665).

The spelling of 20662063 in words is "twenty million, six hundred sixty-two thousand, sixty-three".