20652056069 has 8 divisors (see below), whose sum is σ = 20744565912. Its totient is φ = 20559696640.

The previous prime is 20652056057. The next prime is 20652056071. The reversal of 20652056069 is 96065025602.

It can be written as a sum of positive squares in 4 ways, for example, as 12093400900 + 8558655169 = 109970^2 + 92513^2 .

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 20652056069 - 2⁴ = 20652056053 is a prime.

It is a super-2 number, since 2×20652056069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652056869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242249 + ... + 316209.

It is an arithmetic number, because the mean of its divisors is an integer number (2593070739).

Almost surely, 2^20652056069 is an apocalyptic number.

It is an amenable number.

20652056069 is a deficient number, since it is larger than the sum of its proper divisors (92509843).

20652056069 is an equidigital number, since it uses as much as digits as its factorization.

20652056069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75207.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 20652056069 in words is "twenty billion, six hundred fifty-two million, fifty-six thousand, sixty-nine".