131315516163325 has 24 divisors (see below), whose sum is σ = 175358352425256. Its totient is φ = 96970555392000.

The previous prime is 131315516163211. The next prime is 131315516163331. The reversal of 131315516163325 is 523361615513131.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 15407618964516 + 115907897198809 = 3925254^2 + 10766053^2 .

It is not a de Polignac number, because 131315516163325 - 2⁹ = 131315516162813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34146045 + ... + 37796605.

It is an arithmetic number, because the mean of its divisors is an integer number (7306598017719).

Almost surely, 2^{131315516163325} is an apocalyptic number.

It is an amenable number.

131315516163325 is a deficient number, since it is larger than the sum of its proper divisors (44042836261931).

131315516163325 is a wasteful number, since it uses less digits than its factorization.

131315516163325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761265 (or 3761260 counting only the distinct ones).

The product of its digits is 729000, while the sum is 46.

The spelling of 131315516163325 in words is "one hundred thirty-one trillion, three hundred fifteen billion, five hundred sixteen million, one hundred sixty-three thousand, three hundred twenty-five".