126664 has 16 divisors (see below), whose sum is σ = 241920. Its totient is φ = 62160.

The previous prime is 126653. The next prime is 126683. The reversal of 126664 is 466621.

It is a happy number.

It is an unprimeable number.

126664 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, 457 + ... + 679.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2¹²⁶⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

126664 is a deficient number, since it is larger than the sum of its proper divisors (115256).

126664 is a wasteful number, since it uses less digits than its factorization.

126664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 296 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 126664 is about 355.8988620381. The cubic root of 126664 is about 50.2208893872.

The spelling of 126664 in words is "one hundred twenty-six thousand, six hundred sixty-four".