20443275523356 has 48 divisors (see below), whose sum is σ = 54515915978496. Its totient is φ = 5840880729984.

The previous prime is 20443275523327. The next prime is 20443275523373. The reversal of 20443275523356 is 65332557234402.

It is a junction number, because it is equal to n+sod(n) for n = 20443275523299 and 20443275523308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8259355 + ... + 10445261.

It is an arithmetic number, because the mean of its divisors is an integer number (1135748249552).

Almost surely, 2^{20443275523356} is an apocalyptic number.

It is an amenable number.

20443275523356 is an abundant number, since it is smaller than the sum of its proper divisors (34072640455140).

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

20443275523356 is a wasteful number, since it uses less digits than its factorization.

20443275523356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297258 (or 2297256 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 51.

The spelling of 20443275523356 in words is "twenty trillion, four hundred forty-three billion, two hundred seventy-five million, five hundred twenty-three thousand, three hundred fifty-six".