66392832 has 144 divisors (see below), whose sum is σ = 200148480. Its totient is φ = 19353600.

The previous prime is 66392831. The next prime is 66392863. The reversal of 66392832 is 23829366.

It is not an unprimeable number, because it can be changed into a prime (66392831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244857 + ... + 245127.

It is an arithmetic number, because the mean of its divisors is an integer number (1389920).

Almost surely, 2^66392832 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 66392832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100074240).

66392832 is an abundant number, since it is smaller than the sum of its proper divisors (133755648).

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

66392832 is a wasteful number, since it uses less digits than its factorization.

66392832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 316 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 66392832 is about 8148.1796740131. The cubic root of 66392832 is about 404.9241985860.

The spelling of 66392832 in words is "sixty-six million, three hundred ninety-two thousand, eight hundred thirty-two".