66482197 has 16 divisors (see below), whose sum is σ = 74027520. Its totient is φ = 59443200.

The previous prime is 66482173. The next prime is 66482201. The reversal of 66482197 is 79128466.

It is a cyclic number.

It is not a de Polignac number, because 66482197 - 2⁷ = 66482069 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 (66482137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22773 + ... + 25525.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^66482197 is an apocalyptic number.

It is an amenable number.

66482197 is a deficient number, since it is larger than the sum of its proper divisors (7545323).

66482197 is a wasteful number, since it uses less digits than its factorization.

66482197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844.

The product of its digits is 145152, while the sum is 43.

The square root of 66482197 is about 8153.6615701168. The cubic root of 66482197 is about 405.1057936294.

The spelling of 66482197 in words is "sixty-six million, four hundred eighty-two thousand, one hundred ninety-seven".