1660056506111 has 8 divisors (see below), whose sum is σ = 1663749104640. Its totient is φ = 1656366547032.

The previous prime is 1660056506029. The next prime is 1660056506149. The reversal of 1660056506111 is 1116056500661.

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

It is a cyclic number.

It is not a de Polignac number, because 1660056506111 - 2³⁰ = 1658982764287 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 (1660056505111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 602096 + ... + 1919018.

It is an arithmetic number, because the mean of its divisors is an integer number (207968638080).

Almost surely, 2^{1660056506111} is an apocalyptic number.

1660056506111 is a deficient number, since it is larger than the sum of its proper divisors (3692598529).

1660056506111 is a wasteful number, since it uses less digits than its factorization.

1660056506111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319725.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1660056506111 in words is "one trillion, six hundred sixty billion, fifty-six million, five hundred six thousand, one hundred eleven".