64503353208 has 64 divisors (see below), whose sum is σ = 185398940160. Its totient is φ = 18319165056.

The previous prime is 64503353171. The next prime is 64503353273. The reversal of 64503353208 is 80235330546.

64503353208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1121491 + ... + 1177602.

It is an arithmetic number, because the mean of its divisors is an integer number (2896858440).

Almost surely, 2^64503353208 is an apocalyptic number.

It is an amenable number.

64503353208 is an abundant number, since it is smaller than the sum of its proper divisors (120895586952).

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

64503353208 is a wasteful number, since it uses less digits than its factorization.

64503353208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299276 (or 2299272 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 64503353208 in words is "sixty-four billion, five hundred three million, three hundred fifty-three thousand, two hundred eight".