63583788166361 has 4 divisors (see below), whose sum is σ = 65302268927652. Its totient is φ = 61865307405072.

The previous prime is 63583788166267. The next prime is 63583788166363. The reversal of 63583788166361 is 16366188738536.

63583788166361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42716433279961 + 20867354886400 = 6535781^2 + 4568080^2 .

It is a cyclic number.

It is not a de Polignac number, because 63583788166361 - 2¹⁴ = 63583788149977 is a prime.

It is a super-2 number, since 2×63583788166361² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63583788166363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859240380590 + ... + 859240380663.

It is an arithmetic number, because the mean of its divisors is an integer number (16325567231913).

Almost surely, 2^{63583788166361} is an apocalyptic number.

It is an amenable number.

63583788166361 is a deficient number, since it is larger than the sum of its proper divisors (1718480761291).

63583788166361 is a wasteful number, since it uses less digits than its factorization.

63583788166361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718480761290.

The product of its digits is 627056640, while the sum is 71.

The spelling of 63583788166361 in words is "sixty-three trillion, five hundred eighty-three billion, seven hundred eighty-eight million, one hundred sixty-six thousand, three hundred sixty-one".