66841676 has 12 divisors (see below), whose sum is σ = 127606920. Its totient is φ = 30382560.

The previous prime is 66841613. The next prime is 66841681. The reversal of 66841676 is 67614866.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1519129 = 66841676 / (6 + 6 + 8 + 4 + 1 + 6 + 7 + 6).

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 3 ways as a sum of consecutive naturals, for example, 759521 + ... + 759608.

It is an arithmetic number, because the mean of its divisors is an integer number (10633910).

Almost surely, 2^66841676 is an apocalyptic number.

It is an amenable number.

66841676 is a deficient number, since it is larger than the sum of its proper divisors (60765244).

66841676 is a wasteful number, since it uses less digits than its factorization.

66841676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519144 (or 1519142 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 66841676 is about 8175.6758742015. The cubic root of 66841676 is about 405.8346370502.

The spelling of 66841676 in words is "sixty-six million, eight hundred forty-one thousand, six hundred seventy-six".