66624696 has 48 divisors (see below), whose sum is σ = 182997360. Its totient is φ = 21893760.

The previous prime is 66624667. The next prime is 66624703. The reversal of 66624696 is 69642666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1405 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (3812445).

Almost surely, 2^66624696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66624696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91498680).

66624696 is an abundant number, since it is smaller than the sum of its proper divisors (116372664).

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

66624696 is a wasteful number, since it uses less digits than its factorization.

66624696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13116 (or 13109 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 66624696 is about 8162.3952366937. The cubic root of 66624696 is about 405.3950238178.

The spelling of 66624696 in words is "sixty-six million, six hundred twenty-four thousand, six hundred ninety-six".