131535662118 has 64 divisors (see below), whose sum is σ = 306602496000. Its totient is φ = 36841482144.

The previous prime is 131535662117. The next prime is 131535662119. The reversal of 131535662118 is 811266535131.

It is an interprime number because it is at equal distance from previous prime (131535662117) and next prime (131535662119).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 131535662118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131535662117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 815673 + ... + 963531.

It is an arithmetic number, because the mean of its divisors is an integer number (4790664000).

Almost surely, 2^131535662118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131535662118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153301248000).

131535662118 is an abundant number, since it is smaller than the sum of its proper divisors (175066833882).

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

131535662118 is a wasteful number, since it uses less digits than its factorization.

131535662118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148289.

The product of its digits is 129600, while the sum is 42.

The spelling of 131535662118 in words is "one hundred thirty-one billion, five hundred thirty-five million, six hundred sixty-two thousand, one hundred eighteen".