66755368 has 16 divisors (see below), whose sum is σ = 125498880. Its totient is φ = 33289008.

The previous prime is 66755357. The next prime is 66755387. The reversal of 66755368 is 86355766.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7830 + ... + 13957.

It is an arithmetic number, because the mean of its divisors is an integer number (7843680).

Almost surely, 2^66755368 is an apocalyptic number.

It is an amenable number.

66755368 is a deficient number, since it is larger than the sum of its proper divisors (58743512).

66755368 is a wasteful number, since it uses less digits than its factorization.

66755368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22176 (or 22172 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The square root of 66755368 is about 8170.3958288445. The cubic root of 66755368 is about 405.6598864821.

The spelling of 66755368 in words is "sixty-six million, seven hundred fifty-five thousand, three hundred sixty-eight".