63213104302165 has 4 divisors (see below), whose sum is σ = 75855725162604. Its totient is φ = 50570483441728.

The previous prime is 63213104302151. The next prime is 63213104302171. The reversal of 63213104302165 is 56120340131236.

63213104302165 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 26739923576356 + 36473180725809 = 5171066^2 + 6039303^2 .

It is a cyclic number.

It is not a de Polignac number, because 63213104302165 - 2⁹ = 63213104301653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 6321310430212 + ... + 6321310430221.

It is an arithmetic number, because the mean of its divisors is an integer number (18963931290651).

Almost surely, 2^{63213104302165} is an apocalyptic number.

It is an amenable number.

63213104302165 is a deficient number, since it is larger than the sum of its proper divisors (12642620860439).

63213104302165 is a wasteful number, since it uses less digits than its factorization.

63213104302165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12642620860438.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 63213104302165 in words is "sixty-three trillion, two hundred thirteen billion, one hundred four million, three hundred two thousand, one hundred sixty-five".