20750323655320 has 64 divisors (see below), whose sum is σ = 53416036684800. Its totient is φ = 7106655139200.

The previous prime is 20750323655309. The next prime is 20750323655357. The reversal of 20750323655320 is 2355632305702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40062756 + ... + 40577395.

It is an arithmetic number, because the mean of its divisors is an integer number (834625573200).

Almost surely, 2^{20750323655320} is an apocalyptic number.

20750323655320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20750323655320 is an abundant number, since it is smaller than the sum of its proper divisors (32665713029480).

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

20750323655320 is a wasteful number, since it uses less digits than its factorization.

20750323655320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80641088 (or 80641084 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 43.

The spelling of 20750323655320 in words is "twenty trillion, seven hundred fifty billion, three hundred twenty-three million, six hundred fifty-five thousand, three hundred twenty".