131171425560 has 192 divisors, whose sum is σ = 512850873600. Its totient is φ = 28404027648.

The previous prime is 131171425549. The next prime is 131171425607. The reversal of 131171425560 is 65524171131.

131171425560 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 71 + 4 + 25 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1321914 + ... + 1417673.

It is an arithmetic number, because the mean of its divisors is an integer number (2671098300).

Almost surely, 2^131171425560 is an apocalyptic number.

131171425560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131171425560 is an abundant number, since it is smaller than the sum of its proper divisors (381679448040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131171425560 is a wasteful number, since it uses less digits than its factorization.

131171425560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739630 (or 2739623 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

Adding to 131171425560 its reverse (65524171131), we get a palindrome (196695596691).

The spelling of 131171425560 in words is "one hundred thirty-one billion, one hundred seventy-one million, four hundred twenty-five thousand, five hundred sixty".