66331027 has 8 divisors (see below), whose sum is σ = 76720896. Its totient is φ = 56169672.

The previous prime is 66331021. The next prime is 66331039. The reversal of 66331027 is 72013366.

66331027 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 66331027 - 2³ = 66331019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66330986 and 66331004.

It is not an unprimeable number, because it can be changed into a prime (66331021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56503 + ... + 57664.

It is an arithmetic number, because the mean of its divisors is an integer number (9590112).

Almost surely, 2^66331027 is an apocalyptic number.

66331027 is a deficient number, since it is larger than the sum of its proper divisors (10389869).

66331027 is a wasteful number, since it uses less digits than its factorization.

66331027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114257.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 66331027 is about 8144.3862261069. The cubic root of 66331027 is about 404.7985117761.

The spelling of 66331027 in words is "sixty-six million, three hundred thirty-one thousand, twenty-seven".