131316365632 has 84 divisors (see below), whose sum is σ = 277850429820. Its totient is φ = 61563879424.

The previous prime is 131316365563. The next prime is 131316365651. The reversal of 131316365632 is 236563613131.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 256 + 131316365376 = 16^2 + 362376^2 .

It is a super-2 number, since 2×131316365632² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4962228 + ... + 4988620.

Almost surely, 2^131316365632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131316365632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138925214910).

131316365632 is an abundant number, since it is smaller than the sum of its proper divisors (146534064188).

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

131316365632 is a wasteful number, since it uses less digits than its factorization.

131316365632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26708 (or 26681 counting only the distinct ones).

The product of its digits is 174960, while the sum is 40.

Adding to 131316365632 its reverse (236563613131), we get a palindrome (367879978763).

The spelling of 131316365632 in words is "one hundred thirty-one billion, three hundred sixteen million, three hundred sixty-five thousand, six hundred thirty-two".