66002003387824 has 60 divisors (see below), whose sum is σ = 149512178670624. Its totient is φ = 28142986150272.

The previous prime is 66002003387813. The next prime is 66002003387863. The reversal of 66002003387824 is 42878330020066.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213516184 + ... + 213825079.

Almost surely, 2^{66002003387824} is an apocalyptic number.

It is an amenable number.

66002003387824 is an abundant number, since it is smaller than the sum of its proper divisors (83510175282800).

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

66002003387824 is a wasteful number, since it uses less digits than its factorization.

66002003387824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427341482 (or 427341469 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 66002003387824 in words is "sixty-six trillion, two billion, three million, three hundred eighty-seven thousand, eight hundred twenty-four".