66317696 has 32 divisors (see below), whose sum is σ = 135201000. Its totient is φ = 32385024.

The previous prime is 66317689. The next prime is 66317723. The reversal of 66317696 is 69671366.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521 + ... + 11528.

Almost surely, 2^66317696 is an apocalyptic number.

It is an amenable number.

66317696 is an abundant number, since it is smaller than the sum of its proper divisors (68883304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66317696 is a wasteful number, since it uses less digits than its factorization.

66317696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12106 (or 12094 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 66317696 is about 8143.5677684907. The cubic root of 66317696 is about 404.7713915843.

The spelling of 66317696 in words is "sixty-six million, three hundred seventeen thousand, six hundred ninety-six".