20652066 has 24 divisors (see below), whose sum is σ = 44987904. Its totient is φ = 6846840.

The previous prime is 20652043. The next prime is 20652077. The reversal of 20652066 is 66025602.

20652066 is a `hidden beast` number, since 2 + 0 + 652 + 0 + 6 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (1874496).

Almost surely, 2^20652066 is an apocalyptic number.

20652066 is an abundant number, since it is smaller than the sum of its proper divisors (24335838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20652066 is a wasteful number, since it uses less digits than its factorization.

20652066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206 (or 6203 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20652066 is about 4544.4544227003. The cubic root of 20652066 is about 274.3602362149.

Adding to 20652066 its reverse (66025602), we get a palindrome (86677668).

The spelling of 20652066 in words is "twenty million, six hundred fifty-two thousand, sixty-six".