66976882 has 32 divisors (see below), whose sum is σ = 118632960. Its totient is φ = 27760320.

The previous prime is 66976867. The next prime is 66976909. The reversal of 66976882 is 28867966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123532 + ... + 124072.

It is an arithmetic number, because the mean of its divisors is an integer number (3707280).

Almost surely, 2^66976882 is an apocalyptic number.

66976882 is a deficient number, since it is larger than the sum of its proper divisors (51656078).

66976882 is a wasteful number, since it uses less digits than its factorization.

66976882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its digits is 1741824, while the sum is 52.

The square root of 66976882 is about 8183.9404934298. The cubic root of 66976882 is about 406.1080908056.

The spelling of 66976882 in words is "sixty-six million, nine hundred seventy-six thousand, eight hundred eighty-two".