66910 has 8 divisors (see below), whose sum is σ = 120456. Its totient is φ = 26760.

The previous prime is 66889. The next prime is 66919. The reversal of 66910 is 1966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66919) by changing a digit.

66910 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336 + ... + 3355.

It is an arithmetic number, because the mean of its divisors is an integer number (15057).

2⁶⁶⁹¹⁰ is an apocalyptic number.

66910 is a deficient number, since it is larger than the sum of its proper divisors (53546).

66910 is a wasteful number, since it uses less digits than its factorization.

66910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 66910 is about 258.6696735220. The cubic root of 66910 is about 40.5972868191.

The spelling of 66910 in words is "sixty-six thousand, nine hundred ten".