662943875328 has 1152 divisors, whose sum is σ = 2477916672000. Its totient is φ = 172691398656.

The previous prime is 662943875303. The next prime is 662943875383. The reversal of 662943875328 is 823578349266.

It is a happy number.

662943875328 is a `hidden beast` number, since 6 + 6 + 2 + 94 + 3 + 8 + 7 + 532 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2159426151 + ... + 2159426457.

Almost surely, 2^662943875328 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 662943875328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238958336000).

662943875328 is an abundant number, since it is smaller than the sum of its proper divisors (1814972796672).

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

662943875328 is an equidigital number, since it uses as much as digits as its factorization.

662943875328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 367 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 63.

The spelling of 662943875328 in words is "six hundred sixty-two billion, nine hundred forty-three million, eight hundred seventy-five thousand, three hundred twenty-eight".