660760705111 has 4 divisors (see below), whose sum is σ = 711588451672. Its totient is φ = 609932958552.

The previous prime is 660760705103. The next prime is 660760705261. The reversal of 660760705111 is 111507067066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 660760705111 - 2³ = 660760705103 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 (660760705511) 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 3 ways as a sum of consecutive naturals, for example, 25413873261 + ... + 25413873286.

It is an arithmetic number, because the mean of its divisors is an integer number (177897112918).

Almost surely, 2^660760705111 is an apocalyptic number.

660760705111 is a deficient number, since it is larger than the sum of its proper divisors (50827746561).

660760705111 is a wasteful number, since it uses less digits than its factorization.

660760705111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50827746560.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 660760705111 in words is "six hundred sixty billion, seven hundred sixty million, seven hundred five thousand, one hundred eleven".