666014311 has 4 divisors (see below), whose sum is σ = 667138032. Its totient is φ = 664890592.

The previous prime is 666014303. The next prime is 666014329. The reversal of 666014311 is 113410666.

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 666014311 - 2³ = 666014303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 666014311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666014411) 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, 560971 + ... + 562156.

It is an arithmetic number, because the mean of its divisors is an integer number (166784508).

Almost surely, 2^666014311 is an apocalyptic number.

666014311 is a deficient number, since it is larger than the sum of its proper divisors (1123721).

666014311 is a wasteful number, since it uses less digits than its factorization.

666014311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123720.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 666014311 is about 25807.2530696314. The cubic root of 666014311 is about 873.2954291606.

Adding to 666014311 its reverse (113410666), we get a palindrome (779424977).

The spelling of 666014311 in words is "six hundred sixty-six million, fourteen thousand, three hundred eleven".