66097228 has 36 divisors (see below), whose sum is σ = 121357152. Its totient is φ = 31482400.

The previous prime is 66097189. The next prime is 66097249. The reversal of 66097228 is 82279066.

66097228 is nontrivially palindromic in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654378 + ... + 654478.

It is an arithmetic number, because the mean of its divisors is an integer number (3371032).

Almost surely, 2^66097228 is an apocalyptic number.

It is an amenable number.

66097228 is a deficient number, since it is larger than the sum of its proper divisors (55259924).

66097228 is a wasteful number, since it uses less digits than its factorization.

66097228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 66097228 is about 8130.0201721767. The cubic root of 66097228 is about 404.3223499905.

The spelling of 66097228 in words is "sixty-six million, ninety-seven thousand, two hundred twenty-eight".