131250525660 has 144 divisors (see below), whose sum is σ = 413056871136. Its totient is φ = 34984472832.

The previous prime is 131250525649. The next prime is 131250525673. The reversal of 131250525660 is 66525052131.

131250525660 is a `hidden beast` number, since 1 + 3 + 125 + 0 + 525 + 6 + 6 + 0 = 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14366454 + ... + 14375586.

It is an arithmetic number, because the mean of its divisors is an integer number (2868450494).

Almost surely, 2^131250525660 is an apocalyptic number.

131250525660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131250525660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206528435568).

131250525660 is an abundant number, since it is smaller than the sum of its proper divisors (281806345476).

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

131250525660 is a wasteful number, since it uses less digits than its factorization.

131250525660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12114 (or 12100 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 131250525660 its reverse (66525052131), we get a palindrome (197775577791).

The spelling of 131250525660 in words is "one hundred thirty-one billion, two hundred fifty million, five hundred twenty-five thousand, six hundred sixty".