66165157112 has 16 divisors (see below), whose sum is σ = 126944778840. Its totient is φ = 32313216096.

The previous prime is 66165157109. The next prime is 66165157133. The reversal of 66165157112 is 21175156166.

It is a self number, because there is not a number n which added to its sum of digits gives 66165157112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96169943 + ... + 96170630.

Almost surely, 2^66165157112 is an apocalyptic number.

It is an amenable number.

66165157112 is a deficient number, since it is larger than the sum of its proper divisors (60779621728).

66165157112 is a wasteful number, since it uses less digits than its factorization.

66165157112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192340622 (or 192340618 counting only the distinct ones).

The product of its digits is 75600, while the sum is 41.

The spelling of 66165157112 in words is "sixty-six billion, one hundred sixty-five million, one hundred fifty-seven thousand, one hundred twelve".