20321055523446 has 16 divisors (see below), whose sum is σ = 41214535147008. Its totient is φ = 6678281157800.

The previous prime is 20321055523429. The next prime is 20321055523459. The reversal of 20321055523446 is 64432555012302.

It is a junction number, because it is equal to n+sod(n) for n = 20321055523398 and 20321055523407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23851003710 + ... + 23851004561.

It is an arithmetic number, because the mean of its divisors is an integer number (2575908446688).

Almost surely, 2^{20321055523446} is an apocalyptic number.

20321055523446 is an abundant number, since it is smaller than the sum of its proper divisors (20893479623562).

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

20321055523446 is a wasteful number, since it uses less digits than its factorization.

20321055523446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47702008347.

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

The spelling of 20321055523446 in words is "twenty trillion, three hundred twenty-one billion, fifty-five million, five hundred twenty-three thousand, four hundred forty-six".