63299113403520 has 256 divisors, whose sum is σ = 207955104900480. Its totient is φ = 16367027650560.

The previous prime is 63299113403437. The next prime is 63299113403573. The reversal of 63299113403520 is 2530431199236.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 63299113403520.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10364782 + ... + 15297938.

Almost surely, 2^{63299113403520} is an apocalyptic number.

63299113403520 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 63299113403520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103977552450240).

63299113403520 is an abundant number, since it is smaller than the sum of its proper divisors (144655991496960).

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

63299113403520 is a wasteful number, since it uses less digits than its factorization.

63299113403520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4933383 (or 4933371 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 48.

The spelling of 63299113403520 in words is "sixty-three trillion, two hundred ninety-nine billion, one hundred thirteen million, four hundred three thousand, five hundred twenty".