12563161497 has 6 divisors (see below), whose sum is σ = 18146788842. Its totient is φ = 8375440992.

The previous prime is 12563161489. The next prime is 12563161531. The reversal of 12563161497 is 79416136521.

12563161497 is a `hidden beast` number, since 1 + 2 + 5 + 631 + 6 + 1 + 4 + 9 + 7 = 666.

12563161497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6596525961 + 5966635536 = 81219^2 + 77244^2 .

It is not a de Polignac number, because 12563161497 - 2³ = 12563161489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12563161447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 697953408 + ... + 697953425.

It is an arithmetic number, because the mean of its divisors is an integer number (3024464807).

Almost surely, 2^12563161497 is an apocalyptic number.

It is an amenable number.

12563161497 is a deficient number, since it is larger than the sum of its proper divisors (5583627345).

12563161497 is a wasteful number, since it uses less digits than its factorization.

12563161497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395906839 (or 1395906836 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 12563161497 in words is "twelve billion, five hundred sixty-three million, one hundred sixty-one thousand, four hundred ninety-seven".