131540550550 has 96 divisors (see below), whose sum is σ = 251586209952. Its totient is φ = 51153223680.

The previous prime is 131540550529. The next prime is 131540550641. The reversal of 131540550550 is 55055045131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110817057 + ... + 110818243.

It is an arithmetic number, because the mean of its divisors is an integer number (2620689687).

Almost surely, 2^131540550550 is an apocalyptic number.

131540550550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131540550550 is a deficient number, since it is larger than the sum of its proper divisors (120045659402).

131540550550 is a wasteful number, since it uses less digits than its factorization.

131540550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

Adding to 131540550550 its reverse (55055045131), we get a palindrome (186595595681).

The spelling of 131540550550 in words is "one hundred thirty-one billion, five hundred forty million, five hundred fifty thousand, five hundred fifty".