66980612 has 24 divisors (see below), whose sum is σ = 124893216. Its totient is φ = 31321728.

The previous prime is 66980603. The next prime is 66980621. The reversal of 66980612 is 21608966.

66980612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66980603) and next prime (66980621).

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, 8063 + ... + 14105.

It is an arithmetic number, because the mean of its divisors is an integer number (5203884).

Almost surely, 2^66980612 is an apocalyptic number.

It is an amenable number.

66980612 is a deficient number, since it is larger than the sum of its proper divisors (57912604).

66980612 is a wasteful number, since it uses less digits than its factorization.

66980612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227 (or 6225 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 66980612 is about 8184.1683755895. The cubic root of 66980612 is about 406.1156295016.

The spelling of 66980612 in words is "sixty-six million, nine hundred eighty thousand, six hundred twelve".