66755152716 has 96 divisors (see below), whose sum is σ = 182267678208. Its totient is φ = 18617679360.

The previous prime is 66755152697. The next prime is 66755152727. The reversal of 66755152716 is 61725155766.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6904926 + ... + 6914586.

It is an arithmetic number, because the mean of its divisors is an integer number (1898621648).

Almost surely, 2^66755152716 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 66755152716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91133839104).

66755152716 is an abundant number, since it is smaller than the sum of its proper divisors (115512525492).

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

66755152716 is a wasteful number, since it uses less digits than its factorization.

66755152716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11631 (or 11629 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 51.

The spelling of 66755152716 in words is "sixty-six billion, seven hundred fifty-five million, one hundred fifty-two thousand, seven hundred sixteen".