20652806120 has 16 divisors (see below), whose sum is σ = 46468813860. Its totient is φ = 8261122432.

The previous prime is 20652806077. The next prime is 20652806137. The reversal of 20652806120 is 2160825602.

It can be written as a sum of positive squares in 2 ways, for example, as 18856233124 + 1796572996 = 137318^2 + 42386^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258160037 + ... + 258160116.

Almost surely, 2^20652806120 is an apocalyptic number.

20652806120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20652806120 is an abundant number, since it is smaller than the sum of its proper divisors (25816007740).

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

20652806120 is a wasteful number, since it uses less digits than its factorization.

20652806120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516320164 (or 516320160 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 20652806120 in words is "twenty billion, six hundred fifty-two million, eight hundred six thousand, one hundred twenty".