66606268 has 24 divisors (see below), whose sum is σ = 118838160. Its totient is φ = 32659200.

The previous prime is 66606217. The next prime is 66606271. The reversal of 66606268 is 86260666.

It is a self number, because there is not a number n which added to its sum of digits gives 66606268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44923 + ... + 46381.

It is an arithmetic number, because the mean of its divisors is an integer number (4951590).

Almost surely, 2^66606268 is an apocalyptic number.

It is an amenable number.

66606268 is a deficient number, since it is larger than the sum of its proper divisors (52231892).

66606268 is a wasteful number, since it uses less digits than its factorization.

66606268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 66606268 is about 8161.2663233104. The cubic root of 66606268 is about 405.3576437428.

The spelling of 66606268 in words is "sixty-six million, six hundred six thousand, two hundred sixty-eight".