131550540866 has 16 divisors (see below), whose sum is σ = 201538779264. Its totient is φ = 64371149904.

The previous prime is 131550540839. The next prime is 131550540893. The reversal of 131550540866 is 668045055131.

It is an interprime number because it is at equal distance from previous prime (131550540839) and next prime (131550540893).

It is a super-3 number, since 3×131550540866³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515641 + ... + 1600083.

It is an arithmetic number, because the mean of its divisors is an integer number (12596173704).

Almost surely, 2^131550540866 is an apocalyptic number.

131550540866 is a deficient number, since it is larger than the sum of its proper divisors (69988238398).

131550540866 is a wasteful number, since it uses less digits than its factorization.

131550540866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101065.

The product of its (nonzero) digits is 432000, while the sum is 44.

Adding to 131550540866 its reverse (668045055131), we get a palindrome (799595595997).

The spelling of 131550540866 in words is "one hundred thirty-one billion, five hundred fifty million, five hundred forty thousand, eight hundred sixty-six".