66979675148 has 12 divisors (see below), whose sum is σ = 118963901112. Its totient is φ = 32989989120.

The previous prime is 66979675099. The next prime is 66979675151. The reversal of 66979675148 is 84157697966.

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, 124961813 + ... + 124962348.

It is an arithmetic number, because the mean of its divisors is an integer number (9913658426).

Almost surely, 2^66979675148 is an apocalyptic number.

It is an amenable number.

66979675148 is a deficient number, since it is larger than the sum of its proper divisors (51984225964).

66979675148 is a wasteful number, since it uses less digits than its factorization.

66979675148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249924232 (or 249924230 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 68.

The spelling of 66979675148 in words is "sixty-six billion, nine hundred seventy-nine million, six hundred seventy-five thousand, one hundred forty-eight".