66880352 has 48 divisors (see below), whose sum is σ = 164166912. Its totient is φ = 26056320.

The previous prime is 66880313. The next prime is 66880357. The reversal of 66880352 is 25308866.

66880352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66880357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11108 + ... + 16035.

It is an arithmetic number, because the mean of its divisors is an integer number (3420144).

Almost surely, 2^66880352 is an apocalyptic number.

It is an amenable number.

66880352 is an abundant number, since it is smaller than the sum of its proper divisors (97286560).

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

66880352 is a wasteful number, since it uses less digits than its factorization.

66880352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27171 (or 27163 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 66880352 is about 8178.0408411795. The cubic root of 66880352 is about 405.9128967777.

The spelling of 66880352 in words is "sixty-six million, eight hundred eighty thousand, three hundred fifty-two".