131155403650206 has 96 divisors (see below), whose sum is σ = 286241842857600. Its totient is φ = 39826267386048.

The previous prime is 131155403650177. The next prime is 131155403650213. The reversal of 131155403650206 is 602056304551131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1072354845 + ... + 1072477143.

It is an arithmetic number, because the mean of its divisors is an integer number (2981685863100).

Almost surely, 2^{131155403650206} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131155403650206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143120921428800).

131155403650206 is an abundant number, since it is smaller than the sum of its proper divisors (155086439207394).

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

131155403650206 is a wasteful number, since it uses less digits than its factorization.

131155403650206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124678 (or 124599 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 131155403650206 in words is "one hundred thirty-one trillion, one hundred fifty-five billion, four hundred three million, six hundred fifty thousand, two hundred six".