63115981590720 has 448 divisors, whose sum is σ = 211691646720000. Its totient is φ = 15900483354624.

The previous prime is 63115981590653. The next prime is 63115981590751. The reversal of 63115981590720 is 2709518951136.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1805927806 + ... + 1805962754.

Almost surely, 2^{63115981590720} is an apocalyptic number.

63115981590720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63115981590720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105845823360000).

63115981590720 is an abundant number, since it is smaller than the sum of its proper divisors (148575665129280).

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

63115981590720 is a wasteful number, since it uses less digits than its factorization.

63115981590720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36000 (or 35990 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 63115981590720 in words is "sixty-three trillion, one hundred fifteen billion, nine hundred eighty-one million, five hundred ninety thousand, seven hundred twenty".