662066 has 8 divisors (see below), whose sum is σ = 1002540. Its totient is φ = 327888.

The previous prime is 662063. The next prime is 662083. The reversal of 662066 is 660266.

662066 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 2 ways, for example, as 606841 + 55225 = 779^2 + 235^2 .

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

It is not an unprimeable number, because it can be changed into a prime (662063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301 + ... + 1736.

2⁶⁶²⁰⁶⁶ is an apocalyptic number.

662066 is a deficient number, since it is larger than the sum of its proper divisors (340474).

662066 is a wasteful number, since it uses less digits than its factorization.

662066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 662066 is about 813.6743820473. The cubic root of 662066 is about 87.1566298089.

The spelling of 662066 in words is "six hundred sixty-two thousand, sixty-six".