131602706635420 has 48 divisors (see below), whose sum is σ = 279732273115680. Its totient is φ = 51999994839296.

The previous prime is 131602706635409. The next prime is 131602706635423. The reversal of 131602706635420 is 24536607206131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131602706635423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7374474 + ... + 17821006.

It is an arithmetic number, because the mean of its divisors is an integer number (5827755689910).

Almost surely, 2^{131602706635420} is an apocalyptic number.

131602706635420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131602706635420 is an abundant number, since it is smaller than the sum of its proper divisors (148129566480260).

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

131602706635420 is a wasteful number, since it uses less digits than its factorization.

131602706635420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454214 (or 10454212 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 131602706635420 in words is "one hundred thirty-one trillion, six hundred two billion, seven hundred six million, six hundred thirty-five thousand, four hundred twenty".