660111651166 has 8 divisors (see below), whose sum is σ = 1080182701944. Its totient is φ = 300050750520.

The previous prime is 660111651137. The next prime is 660111651167. The reversal of 660111651166 is 661156111066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660111651167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15002537505 + ... + 15002537548.

It is an arithmetic number, because the mean of its divisors is an integer number (135022837743).

Almost surely, 2^660111651166 is an apocalyptic number.

660111651166 is a deficient number, since it is larger than the sum of its proper divisors (420071050778).

660111651166 is a wasteful number, since it uses less digits than its factorization.

660111651166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30005075066.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 660111651166 in words is "six hundred sixty billion, one hundred eleven million, six hundred fifty-one thousand, one hundred sixty-six".