210364505664 has 56 divisors (see below), whose sum is σ = 566023170720. Its totient is φ = 68932998144.

The previous prime is 210364505629. The next prime is 210364505677. The reversal of 210364505664 is 466505463012.

210364505664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9273829 + ... + 9296484.

It is an arithmetic number, because the mean of its divisors is an integer number (10107556620).

Almost surely, 2^210364505664 is an apocalyptic number.

210364505664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210364505664 is an abundant number, since it is smaller than the sum of its proper divisors (355658665056).

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

210364505664 is a wasteful number, since it uses less digits than its factorization.

210364505664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18570387 (or 18570377 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 210364505664 its reverse (466505463012), we get a palindrome (676869968676).

The spelling of 210364505664 in words is "two hundred ten billion, three hundred sixty-four million, five hundred five thousand, six hundred sixty-four".