6665111011131 has 16 divisors (see below), whose sum is σ = 8957858716800. Its totient is φ = 4407936110208.

The previous prime is 6665111011129. The next prime is 6665111011211. The reversal of 6665111011131 is 1311101115666.

It is not a de Polignac number, because 6665111011131 - 2¹ = 6665111011129 is a prime.

It is a super-2 number, since 2×6665111011131² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6665111011092 and 6665111011101.

It is not an unprimeable number, because it can be changed into a prime (6665111015131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5822686 + ... + 6872691.

It is an arithmetic number, because the mean of its divisors is an integer number (559866169800).

Almost surely, 2^{6665111011131} is an apocalyptic number.

6665111011131 is a deficient number, since it is larger than the sum of its proper divisors (2292747705669).

6665111011131 is a wasteful number, since it uses less digits than its factorization.

6665111011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696778.

The product of its (nonzero) digits is 3240, while the sum is 33.

Adding to 6665111011131 its reverse (1311101115666), we get a palindrome (7976212126797).

The spelling of 6665111011131 in words is "six trillion, six hundred sixty-five billion, one hundred eleven million, eleven thousand, one hundred thirty-one".