131355656436 has 24 divisors (see below), whose sum is σ = 312279486624. Its totient is φ = 42959082400.

The previous prime is 131355656417. The next prime is 131355656473. The reversal of 131355656436 is 634656553131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103266390 + ... + 103267661.

It is an arithmetic number, because the mean of its divisors is an integer number (13011645276).

Almost surely, 2^131355656436 is an apocalyptic number.

It is an amenable number.

131355656436 is an abundant number, since it is smaller than the sum of its proper divisors (180923830188).

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

131355656436 is a wasteful number, since it uses less digits than its factorization.

131355656436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206534111 (or 206534109 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 48.

The spelling of 131355656436 in words is "one hundred thirty-one billion, three hundred fifty-five million, six hundred fifty-six thousand, four hundred thirty-six".