1660011110111 has 8 divisors (see below), whose sum is σ = 1666835992800. Its totient is φ = 1653191071200.

The previous prime is 1660011110089. The next prime is 1660011110113. The reversal of 1660011110111 is 1110111100661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660011110111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660011110113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523316 + ... + 1895753.

It is an arithmetic number, because the mean of its divisors is an integer number (208354499100).

Almost surely, 2^{1660011110111} is an apocalyptic number.

1660011110111 is a deficient number, since it is larger than the sum of its proper divisors (6824882689).

1660011110111 is a wasteful number, since it uses less digits than its factorization.

1660011110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421889.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 1660011110111 its reverse (1110111100661), we get a palindrome (2770122210772).

The spelling of 1660011110111 in words is "one trillion, six hundred sixty billion, eleven million, one hundred ten thousand, one hundred eleven".