20652116 has 12 divisors (see below), whose sum is σ = 36179220. Its totient is φ = 10315200.

The previous prime is 20652109. The next prime is 20652133. The reversal of 20652116 is 61125602.

It can be written as a sum of positive squares in 2 ways, for example, as 11628100 + 9024016 = 3410^2 + 3004^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20652091 and 20652100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2816 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (3014935).

Almost surely, 2^20652116 is an apocalyptic number.

It is an amenable number.

20652116 is a deficient number, since it is larger than the sum of its proper divisors (15527104).

20652116 is a wasteful number, since it uses less digits than its factorization.

20652116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434 (or 5432 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20652116 is about 4544.4599239074. The cubic root of 20652116 is about 274.3604576294.

Adding to 20652116 its reverse (61125602), we get a palindrome (81777718).

The spelling of 20652116 in words is "twenty million, six hundred fifty-two thousand, one hundred sixteen".