63320546321 has 8 divisors (see below), whose sum is σ = 64205196264. Its totient is φ = 62441585920.

The previous prime is 63320546309. The next prime is 63320546347. The reversal of 63320546321 is 12364502336.

It can be written as a sum of positive squares in 4 ways, for example, as 13005121600 + 50315424721 = 114040^2 + 224311^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 63320546321 - 2¹⁰ = 63320545297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63320546371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399970 + ... + 1444491.

It is an arithmetic number, because the mean of its divisors is an integer number (8025649533).

Almost surely, 2^63320546321 is an apocalyptic number.

It is an amenable number.

63320546321 is a deficient number, since it is larger than the sum of its proper divisors (884649943).

63320546321 is a wasteful number, since it uses less digits than its factorization.

63320546321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844771.

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 63320546321 in words is "sixty-three billion, three hundred twenty million, five hundred forty-six thousand, three hundred twenty-one".