660112711 has 2 divisors, whose sum is σ = 660112712. Its totient is φ = 660112710.

The previous prime is 660112699. The next prime is 660112753. The reversal of 660112711 is 117211066.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660112711 - 2¹⁷ = 659981639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660112111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330056355 + 330056356.

It is an arithmetic number, because the mean of its divisors is an integer number (330056356).

Almost surely, 2^660112711 is an apocalyptic number.

660112711 is a deficient number, since it is larger than the sum of its proper divisors (1).

660112711 is an equidigital number, since it uses as much as digits as its factorization.

660112711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 660112711 is about 25692.6586985466. The cubic root of 660112711 is about 870.7083283269.

Adding to 660112711 its reverse (117211066), we get a palindrome (777323777).

The spelling of 660112711 in words is "six hundred sixty million, one hundred twelve thousand, seven hundred eleven".