131793066563 has 4 divisors (see below), whose sum is σ = 131795773440. Its totient is φ = 131790359688.

The previous prime is 131793066523. The next prime is 131793066571. The reversal of 131793066563 is 365660397131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365660397131 = 191 ⋅1914452341.

It is a cyclic number.

It is not a de Polignac number, because 131793066563 - 2²⁸ = 131524631107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131793066523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279043 + ... + 1378236.

It is an arithmetic number, because the mean of its divisors is an integer number (32948943360).

Almost surely, 2^131793066563 is an apocalyptic number.

131793066563 is a deficient number, since it is larger than the sum of its proper divisors (2706877).

131793066563 is an equidigital number, since it uses as much as digits as its factorization.

131793066563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706876.

The product of its (nonzero) digits is 1837080, while the sum is 50.

The spelling of 131793066563 in words is "one hundred thirty-one billion, seven hundred ninety-three million, sixty-six thousand, five hundred sixty-three".