20206221388896 has 48 divisors (see below), whose sum is σ = 53272952737200. Its totient is φ = 6705994864128.

The previous prime is 20206221388841. The next prime is 20206221388901. The reversal of 20206221388896 is 69888312260202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 459544551 + ... + 459588518.

It is an arithmetic number, because the mean of its divisors is an integer number (1109853182025).

Almost surely, 2^{20206221388896} is an apocalyptic number.

It is an amenable number.

20206221388896 is an abundant number, since it is smaller than the sum of its proper divisors (33066731348304).

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

20206221388896 is a wasteful number, since it uses less digits than its factorization.

20206221388896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919133311 (or 919133303 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 20206221388896 in words is "twenty trillion, two hundred six billion, two hundred twenty-one million, three hundred eighty-eight thousand, eight hundred ninety-six".