66960959 has 8 divisors (see below), whose sum is σ = 75907440. Its totient is φ = 58556736.

The previous prime is 66960941. The next prime is 66960973. The reversal of 66960959 is 95906966.

It is a happy number.

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 66960959 - 2²⁴ = 50183743 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 (66960919) 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, 135302 + ... + 135795.

It is an arithmetic number, because the mean of its divisors is an integer number (9488430).

Almost surely, 2^66960959 is an apocalyptic number.

66960959 is a deficient number, since it is larger than the sum of its proper divisors (8946481).

66960959 is a wasteful number, since it uses less digits than its factorization.

66960959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271129.

The product of its (nonzero) digits is 787320, while the sum is 50.

The square root of 66960959 is about 8182.9676157248. The cubic root of 66960959 is about 406.0759057120.

The spelling of 66960959 in words is "sixty-six million, nine hundred sixty thousand, nine hundred fifty-nine".