66956876 has 24 divisors (see below), whose sum is σ = 134158080. Its totient is φ = 28643472.

The previous prime is 66956867. The next prime is 66956899. The reversal of 66956876 is 67865966.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16145 + ... + 19863.

It is an arithmetic number, because the mean of its divisors is an integer number (5589920).

Almost surely, 2^66956876 is an apocalyptic number.

It is an amenable number.

66956876 is an abundant number, since it is smaller than the sum of its proper divisors (67201204).

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

66956876 is a wasteful number, since it uses less digits than its factorization.

66956876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4371 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 66956876 is about 8182.7181303036. The cubic root of 66956876 is about 406.0676519392.

The spelling of 66956876 in words is "sixty-six million, nine hundred fifty-six thousand, eight hundred seventy-six".