66710 has 16 divisors (see below), whose sum is σ = 137376. Its totient is φ = 22848.

The previous prime is 66701. The next prime is 66713. The reversal of 66710 is 1766.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66713) 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, 407 + ... + 546.

It is an arithmetic number, because the mean of its divisors is an integer number (8586).

2⁶⁶⁷¹⁰ is an apocalyptic number.

66710 is an abundant number, since it is smaller than the sum of its proper divisors (70666).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68688).

66710 is a wasteful number, since it uses less digits than its factorization.

66710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 66710 is about 258.2827907546. The cubic root of 66710 is about 40.5567968039.

The spelling of 66710 in words is "sixty-six thousand, seven hundred ten".