63187058161 has 4 divisors (see below), whose sum is σ = 63255075300. Its totient is φ = 63119041024.

The previous prime is 63187058159. The next prime is 63187058191. The reversal of 63187058161 is 16185078136.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30410128225 + 32776929936 = 174385^2 + 181044^2 .

It is a cyclic number.

It is not a de Polignac number, because 63187058161 - 2¹ = 63187058159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63187058101) 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, 34007176 + ... + 34009033.

It is an arithmetic number, because the mean of its divisors is an integer number (15813768825).

Almost surely, 2^63187058161 is an apocalyptic number.

It is an amenable number.

63187058161 is a deficient number, since it is larger than the sum of its proper divisors (68017139).

63187058161 is an equidigital number, since it uses as much as digits as its factorization.

63187058161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68017138.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 63187058161 in words is "sixty-three billion, one hundred eighty-seven million, fifty-eight thousand, one hundred sixty-one".