667130111 has 16 divisors (see below), whose sum is σ = 704692224. Its totient is φ = 630330624.

The previous prime is 667130089. The next prime is 667130117. The reversal of 667130111 is 111031766.

It is a cyclic number.

It is not a de Polignac number, because 667130111 - 2¹⁰ = 667129087 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 (667130117) 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 15 ways as a sum of consecutive naturals, for example, 1030790 + ... + 1031436.

It is an arithmetic number, because the mean of its divisors is an integer number (44043264).

Almost surely, 2^667130111 is an apocalyptic number.

667130111 is a deficient number, since it is larger than the sum of its proper divisors (37562113).

667130111 is a wasteful number, since it uses less digits than its factorization.

667130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 667130111 is about 25828.8619764789. The cubic root of 667130111 is about 873.7828458054.

Adding to 667130111 its reverse (111031766), we get a palindrome (778161877).

The spelling of 667130111 in words is "six hundred sixty-seven million, one hundred thirty thousand, one hundred eleven".