20530164435252 has 48 divisors (see below), whose sum is σ = 48185682186432. Its totient is φ = 6803115724800.

The previous prime is 20530164435251. The next prime is 20530164435283. The reversal of 20530164435252 is 25253446103502.

20530164435252 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530164435251) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19416663 + ... + 20446689.

It is an arithmetic number, because the mean of its divisors is an integer number (1003868378884).

Almost surely, 2^{20530164435252} is an apocalyptic number.

It is an amenable number.

20530164435252 is an abundant number, since it is smaller than the sum of its proper divisors (27655517751180).

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

20530164435252 is a wasteful number, since it uses less digits than its factorization.

20530164435252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039808 (or 1039806 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 20530164435252 in words is "twenty trillion, five hundred thirty billion, one hundred sixty-four million, four hundred thirty-five thousand, two hundred fifty-two".