20630066 has 8 divisors (see below), whose sum is σ = 31943424. Its totient is φ = 9982260.

The previous prime is 20630063. The next prime is 20630069. The reversal of 20630066 is 66003602.

It is an interprime number because it is at equal distance from previous prime (20630063) and next prime (20630069).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20630063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166310 + ... + 166433.

It is an arithmetic number, because the mean of its divisors is an integer number (3992928).

Almost surely, 2^20630066 is an apocalyptic number.

20630066 is a deficient number, since it is larger than the sum of its proper divisors (11313358).

20630066 is a wasteful number, since it uses less digits than its factorization.

20630066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332776.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20630066 is about 4542.0332451447. The cubic root of 20630066 is about 274.2627791411.

Adding to 20630066 its reverse (66003602), we get a palindrome (86633668).

The spelling of 20630066 in words is "twenty million, six hundred thirty thousand, sixty-six".