131561647063 has 32 divisors (see below), whose sum is σ = 164915412480. Its totient is φ = 101960501760.

The previous prime is 131561647037. The next prime is 131561647111. The reversal of 131561647063 is 360746165131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131561647063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131561647003) 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, 11249323 + ... + 11261011.

It is an arithmetic number, because the mean of its divisors is an integer number (5153606640).

Almost surely, 2^131561647063 is an apocalyptic number.

131561647063 is a deficient number, since it is larger than the sum of its proper divisors (33353765417).

131561647063 is a wasteful number, since it uses less digits than its factorization.

131561647063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 131561647063 in words is "one hundred thirty-one billion, five hundred sixty-one million, six hundred forty-seven thousand, sixty-three".