20024621066566 has 8 divisors (see below), whose sum is σ = 30038823022824. Its totient is φ = 10011680058960.

The previous prime is 20024621066551. The next prime is 20024621066591. The reversal of 20024621066566 is 66566012642002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315197460 + ... + 315260983.

It is an arithmetic number, because the mean of its divisors is an integer number (3754852877853).

Almost surely, 2^{20024621066566} is an apocalyptic number.

20024621066566 is a deficient number, since it is larger than the sum of its proper divisors (10014201956258).

20024621066566 is a wasteful number, since it uses less digits than its factorization.

20024621066566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630474326.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 20024621066566 in words is "twenty trillion, twenty-four billion, six hundred twenty-one million, sixty-six thousand, five hundred sixty-six".