66313522000 has 320 divisors, whose sum is σ = 181839790080. Its totient is φ = 23179584000.

The previous prime is 66313521907. The next prime is 66313522013. The reversal of 66313522000 is 22531366.

It is a self number, because there is not a number n which added to its sum of digits gives 66313522000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61005457 + ... + 61006543.

It is an arithmetic number, because the mean of its divisors is an integer number (568249344).

Almost surely, 2^66313522000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66313522000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90919895040).

66313522000 is an abundant number, since it is smaller than the sum of its proper divisors (115526268080).

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

66313522000 is a wasteful number, since it uses less digits than its factorization.

66313522000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 66313522000 in words is "sixty-six billion, three hundred thirteen million, five hundred twenty-two thousand".