66700227 has 8 divisors (see below), whose sum is σ = 97018560. Its totient is φ = 40424360.

The previous prime is 66700217. The next prime is 66700229. The reversal of 66700227 is 72200766.

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 66700227 - 2¹² = 66696131 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 66700194 and 66700203.

It is not an unprimeable number, because it can be changed into a prime (66700229) 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, 1010577 + ... + 1010642.

It is an arithmetic number, because the mean of its divisors is an integer number (12127320).

Almost surely, 2^66700227 is an apocalyptic number.

66700227 is a deficient number, since it is larger than the sum of its proper divisors (30318333).

66700227 is a wasteful number, since it uses less digits than its factorization.

66700227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021233.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 66700227 is about 8167.0206930067. The cubic root of 66700227 is about 405.5481618663.

The spelling of 66700227 in words is "sixty-six million, seven hundred thousand, two hundred twenty-seven".