66180328111 has 8 divisors (see below), whose sum is σ = 66419461584. Its totient is φ = 65941285440.

The previous prime is 66180328079. The next prime is 66180328121. The reversal of 66180328111 is 11182308166.

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 66180328111 - 2⁵ = 66180328079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66180328121) 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, 1661256 + ... + 1700626.

It is an arithmetic number, because the mean of its divisors is an integer number (8302432698).

Almost surely, 2^66180328111 is an apocalyptic number.

66180328111 is a deficient number, since it is larger than the sum of its proper divisors (239133473).

66180328111 is a wasteful number, since it uses less digits than its factorization.

66180328111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45401.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 66180328111 in words is "sixty-six billion, one hundred eighty million, three hundred twenty-eight thousand, one hundred eleven".