21173050482366 has 16 divisors (see below), whose sum is σ = 42354020628864. Its totient is φ = 7056363550104.

The previous prime is 21173050482341. The next prime is 21173050482431. The reversal of 21173050482366 is 66328405037112.

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, 329951250 + ... + 330015413.

It is an arithmetic number, because the mean of its divisors is an integer number (2647126289304).

Almost surely, 2^{21173050482366} is an apocalyptic number.

21173050482366 is an abundant number, since it is smaller than the sum of its proper divisors (21180970146498).

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

21173050482366 is a wasteful number, since it uses less digits than its factorization.

21173050482366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659972015.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 21173050482366 in words is "twenty-one trillion, one hundred seventy-three billion, fifty million, four hundred eighty-two thousand, three hundred sixty-six".