131571704266 has 16 divisors (see below), whose sum is σ = 198933991200. Its totient is φ = 65262129328.

The previous prime is 131571704219. The next prime is 131571704287. The reversal of 131571704266 is 662407175131.

It is a super-2 number, since 2×131571704266² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 288565 + ... + 588568.

It is an arithmetic number, because the mean of its divisors is an integer number (12433374450).

Almost surely, 2^131571704266 is an apocalyptic number.

131571704266 is a deficient number, since it is larger than the sum of its proper divisors (67362286934).

131571704266 is a wasteful number, since it uses less digits than its factorization.

131571704266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877733.

The product of its (nonzero) digits is 211680, while the sum is 43.

Adding to 131571704266 its reverse (662407175131), we get a palindrome (793978879397).

The spelling of 131571704266 in words is "one hundred thirty-one billion, five hundred seventy-one million, seven hundred four thousand, two hundred sixty-six".