131903569161 has 48 divisors (see below), whose sum is σ = 234543778560. Its totient is φ = 69561106560.

The previous prime is 131903569157. The next prime is 131903569183. The reversal of 131903569161 is 161965309131.

131903569161 is a `hidden beast` number, since 13 + 19 + 0 + 3 + 569 + 1 + 61 = 666.

It is not a de Polignac number, because 131903569161 - 2² = 131903569157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131903569121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4786420 + ... + 4813898.

It is an arithmetic number, because the mean of its divisors is an integer number (4886328720).

Almost surely, 2^131903569161 is an apocalyptic number.

It is an amenable number.

131903569161 is a deficient number, since it is larger than the sum of its proper divisors (102640209399).

131903569161 is a wasteful number, since it uses less digits than its factorization.

131903569161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366 (or 33363 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 131903569161 in words is "one hundred thirty-one billion, nine hundred three million, five hundred sixty-nine thousand, one hundred sixty-one".