20352112652656 has 20 divisors (see below), whose sum is σ = 41507598173800. Its totient is φ = 9640474414272.

The previous prime is 20352112652653. The next prime is 20352112652681. The reversal of 20352112652656 is 65625621125302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352112652653) 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 3 ways as a sum of consecutive naturals, for example, 33473869191 + ... + 33473869798.

It is an arithmetic number, because the mean of its divisors is an integer number (2075379908690).

Almost surely, 2^{20352112652656} is an apocalyptic number.

It is an amenable number.

20352112652656 is an abundant number, since it is smaller than the sum of its proper divisors (21155485521144).

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

20352112652656 is a wasteful number, since it uses less digits than its factorization.

20352112652656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66947739016 (or 66947739010 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

Adding to 20352112652656 its reverse (65625621125302), we get a palindrome (85977733777958).

The spelling of 20352112652656 in words is "twenty trillion, three hundred fifty-two billion, one hundred twelve million, six hundred fifty-two thousand, six hundred fifty-six".