66301838016 has 56 divisors (see below), whose sum is σ = 180164811120. Its totient is φ = 21503296512.

The previous prime is 66301838003. The next prime is 66301838051. The reversal of 66301838016 is 61083810366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4659411 + ... + 4673618.

It is an arithmetic number, because the mean of its divisors is an integer number (3217228770).

Almost surely, 2^66301838016 is an apocalyptic number.

It is an amenable number.

66301838016 is an abundant number, since it is smaller than the sum of its proper divisors (113862973104).

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

66301838016 is a wasteful number, since it uses less digits than its factorization.

66301838016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9333081 (or 9333071 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 66301838016 in words is "sixty-six billion, three hundred one million, eight hundred thirty-eight thousand, sixteen".