63297999648016 has 135 divisors (see below), whose sum is σ = 143701959724869. Its totient is φ = 26931519076224.

The previous prime is 63297999647921. The next prime is 63297999648029. The reversal of 63297999648016 is 61084699979236.

The square root of 63297999648016 is 7956004.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7415796454416 + 55882203193600 = 2723196^2 + 7475440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 33192447735 + ... + 33192449641.

Almost surely, 2^{63297999648016} is an apocalyptic number.

63297999648016 is the 7956004-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63297999648016

63297999648016 is an abundant number, since it is smaller than the sum of its proper divisors (80403960076853).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63297999648016 is an frugal number, since it uses more digits than its factorization.

63297999648016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 1904684544, while the sum is 79.

The spelling of 63297999648016 in words is "sixty-three trillion, two hundred ninety-seven billion, nine hundred ninety-nine million, six hundred forty-eight thousand, sixteen".