63317518161 has 8 divisors (see below), whose sum is σ = 85807347264. Its totient is φ = 41519683920.

The previous prime is 63317518153. The next prime is 63317518177. The reversal of 63317518161 is 16181571336.

63317518161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63317518161 - 2³ = 63317518153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63317511161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172998501 + ... + 172998866.

It is an arithmetic number, because the mean of its divisors is an integer number (10725918408).

Almost surely, 2^63317518161 is an apocalyptic number.

63317518161 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

63317518161 is a deficient number, since it is larger than the sum of its proper divisors (22489829103).

63317518161 is a wasteful number, since it uses less digits than its factorization.

63317518161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345997431.

The product of its digits is 90720, while the sum is 42.

The spelling of 63317518161 in words is "sixty-three billion, three hundred seventeen million, five hundred eighteen thousand, one hundred sixty-one".