66880076 has 12 divisors (see below), whose sum is σ = 123200280. Its totient is φ = 31680000.

The previous prime is 66880069. The next prime is 66880081. The reversal of 66880076 is 67008866.

66880076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 439925 + ... + 440076.

It is an arithmetic number, because the mean of its divisors is an integer number (10266690).

Almost surely, 2^66880076 is an apocalyptic number.

It is an amenable number.

66880076 is a deficient number, since it is larger than the sum of its proper divisors (56320204).

66880076 is a wasteful number, since it uses less digits than its factorization.

66880076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880024 (or 880022 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 66880076 is about 8178.0239667049. The cubic root of 66880076 is about 405.9123384068.

The spelling of 66880076 in words is "sixty-six million, eight hundred eighty thousand, seventy-six".