66496 has 14 divisors (see below), whose sum is σ = 132080. Its totient is φ = 33216.

The previous prime is 66491. The next prime is 66499. The reversal of 66496 is 69466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456 + ... + 583.

2⁶⁶⁴⁹⁶ is an apocalyptic number.

It is an amenable number.

66496 is a deficient number, since it is larger than the sum of its proper divisors (65584).

66496 is a wasteful number, since it uses less digits than its factorization.

66496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1041 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 66496 is about 257.8681833806. The cubic root of 66496 is about 40.5133827642.

The spelling of 66496 in words is "sixty-six thousand, four hundred ninety-six".