66707032 has 48 divisors (see below), whose sum is σ = 146205000. Its totient is φ = 28449792.

The previous prime is 66707027. The next prime is 66707033. The reversal of 66707032 is 23070766.

It is a junction number, because it is equal to n+sod(n) for n = 66706985 and 66707003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66707033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148344 + ... + 148792.

Almost surely, 2^66707032 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 66707032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73102500).

66707032 is an abundant number, since it is smaller than the sum of its proper divisors (79497968).

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

66707032 is a wasteful number, since it uses less digits than its factorization.

66707032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 66707032 is about 8167.4372969739. The cubic root of 66707032 is about 405.5619532306.

Adding to 66707032 its reverse (23070766), we get a palindrome (89777798).

The spelling of 66707032 in words is "sixty-six million, seven hundred seven thousand, thirty-two".