66627347611 has 8 divisors (see below), whose sum is σ = 72687014064. Its totient is φ = 60568120320.

The previous prime is 66627347603. The next prime is 66627347713. The reversal of 66627347611 is 11674372666.

66627347611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66627347611 - 2³ = 66627347603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66627347911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262275 + ... + 449491.

It is an arithmetic number, because the mean of its divisors is an integer number (9085876758).

Almost surely, 2^66627347611 is an apocalyptic number.

66627347611 is a deficient number, since it is larger than the sum of its proper divisors (6059666453).

66627347611 is a wasteful number, since it uses less digits than its factorization.

66627347611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219581.

The product of its digits is 1524096, while the sum is 49.

The spelling of 66627347611 in words is "sixty-six billion, six hundred twenty-seven million, three hundred forty-seven thousand, six hundred eleven".