66832788 has 96 divisors (see below), whose sum is σ = 178319232. Its totient is φ = 19302400.

The previous prime is 66832769. The next prime is 66832813. The reversal of 66832788 is 88723866.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286720 + ... + 286952.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^66832788 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 66832788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89159616).

66832788 is an abundant number, since it is smaller than the sum of its proper divisors (111486444).

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

66832788 is a wasteful number, since it uses less digits than its factorization.

66832788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 343 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 66832788 is about 8175.1322925076. The cubic root of 66832788 is about 405.8166481828.

The spelling of 66832788 in words is "sixty-six million, eight hundred thirty-two thousand, seven hundred eighty-eight".