20330033664 has 40 divisors (see below), whose sum is σ = 54160484400. Its totient is φ = 6776677376.

The previous prime is 20330033641. The next prime is 20330033677. The reversal of 20330033664 is 46633003302.

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, 6616314 + ... + 6619385.

It is an arithmetic number, because the mean of its divisors is an integer number (1354012110).

Almost surely, 2^20330033664 is an apocalyptic number.

20330033664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20330033664 is an abundant number, since it is smaller than the sum of its proper divisors (33830450736).

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

20330033664 is an equidigital number, since it uses as much as digits as its factorization.

20330033664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13235720 (or 13235704 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 20330033664 its reverse (46633003302), we get a palindrome (66963036966).

The spelling of 20330033664 in words is "twenty billion, three hundred thirty million, thirty-three thousand, six hundred sixty-four".