66767241 has 8 divisors (see below), whose sum is σ = 89256960. Its totient is φ = 44394512.

The previous prime is 66767237. The next prime is 66767257. The reversal of 66767241 is 14276766.

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 66767241 - 2² = 66767237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66767241.

It is not an unprimeable number, because it can be changed into a prime (66767641) 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, 27906 + ... + 30203.

It is an arithmetic number, because the mean of its divisors is an integer number (11157120).

Almost surely, 2^66767241 is an apocalyptic number.

It is an amenable number.

66767241 is a deficient number, since it is larger than the sum of its proper divisors (22489719).

66767241 is a wasteful number, since it uses less digits than its factorization.

66767241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58495.

The product of its digits is 84672, while the sum is 39.

The square root of 66767241 is about 8171.1223831246. The cubic root of 66767241 is about 405.6839350566.

The spelling of 66767241 in words is "sixty-six million, seven hundred sixty-seven thousand, two hundred forty-one".