6666350131 has 16 divisors (see below), whose sum is σ = 8068999680. Its totient is φ = 5376458880.

The previous prime is 6666350111. The next prime is 6666350149. The reversal of 6666350131 is 1310536666.

It is a cyclic number.

It is not a de Polignac number, because 6666350131 - 2²¹ = 6664252979 is a prime.

It is a super-2 number, since 2×6666350131² = 88880448138167434322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6666350101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878130 + ... + 885688.

It is an arithmetic number, because the mean of its divisors is an integer number (504312480).

Almost surely, 2^6666350131 is an apocalyptic number.

6666350131 is a deficient number, since it is larger than the sum of its proper divisors (1402649549).

6666350131 is a wasteful number, since it uses less digits than its factorization.

6666350131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14994.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 6666350131 is about 81647.7196925915. The cubic root of 6666350131 is about 1882.0422701439.

Adding to 6666350131 its reverse (1310536666), we get a palindrome (7976886797).

The spelling of 6666350131 in words is "six billion, six hundred sixty-six million, three hundred fifty thousand, one hundred thirty-one".