20330673664 has 80 divisors (see below), whose sum is σ = 48868300800. Its totient is φ = 8254531584.

The previous prime is 20330673647. The next prime is 20330673703. The reversal of 20330673664 is 46637603302.

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, 81184 + ... + 217375.

It is an arithmetic number, because the mean of its divisors is an integer number (610853760).

Almost surely, 2^20330673664 is an apocalyptic number.

It is an amenable number.

20330673664 is an abundant number, since it is smaller than the sum of its proper divisors (28537627136).

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

20330673664 is an equidigital number, since it uses as much as digits as its factorization.

20330673664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298603 (or 298587 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 40.

The spelling of 20330673664 in words is "twenty billion, three hundred thirty million, six hundred seventy-three thousand, six hundred sixty-four".