660948758108 has 12 divisors (see below), whose sum is σ = 1157207743440. Its totient is φ = 330317974272.

The previous prime is 660948758101. The next prime is 660948758153. The reversal of 660948758108 is 801857849066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660948758101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39091688 + ... + 39108591.

It is an arithmetic number, because the mean of its divisors is an integer number (96433978620).

Almost surely, 2^660948758108 is an apocalyptic number.

It is an amenable number.

660948758108 is a deficient number, since it is larger than the sum of its proper divisors (496258985332).

660948758108 is a wasteful number, since it uses less digits than its factorization.

660948758108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78202396 (or 78202394 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 660948758108 in words is "six hundred sixty billion, nine hundred forty-eight million, seven hundred fifty-eight thousand, one hundred eight".