131571018063 has 16 divisors (see below), whose sum is σ = 195080767840. Its totient is φ = 87641678592.

The previous prime is 131571018041. The next prime is 131571018071. The reversal of 131571018063 is 360810175131.

131571018063 is a `hidden beast` number, since 1 + 3 + 1 + 571 + 0 + 1 + 80 + 6 + 3 = 666.

It is not a de Polignac number, because 131571018063 - 2⁹ = 131571017551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131571018463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975906 + ... + 2041407.

It is an arithmetic number, because the mean of its divisors is an integer number (12192547990).

Almost surely, 2^131571018063 is an apocalyptic number.

131571018063 is a deficient number, since it is larger than the sum of its proper divisors (63509749777).

131571018063 is a wasteful number, since it uses less digits than its factorization.

131571018063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018535 (or 4018529 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 131571018063 in words is "one hundred thirty-one billion, five hundred seventy-one million, eighteen thousand, sixty-three".