66716376 has 32 divisors (see below), whose sum is σ = 174044160. Its totient is φ = 21271712.

The previous prime is 66716329. The next prime is 66716413. The reversal of 66716376 is 67361766.

66716376 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 an unprimeable number.

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, 59880 + ... + 60983.

It is an arithmetic number, because the mean of its divisors is an integer number (5438880).

Almost surely, 2^66716376 is an apocalyptic number.

It is an amenable number.

66716376 is an abundant number, since it is smaller than the sum of its proper divisors (107327784).

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

66716376 is a wasteful number, since it uses less digits than its factorization.

66716376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120895 (or 120891 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 66716376 is about 8168.0093045980. The cubic root of 66716376 is about 405.5808887353.

The spelling of 66716376 in words is "sixty-six million, seven hundred sixteen thousand, three hundred seventy-six".