63159551280 has 960 divisors, whose sum is σ = 266523893760. Its totient is φ = 13449369600.

The previous prime is 63159551197. The next prime is 63159551297. The reversal of 63159551280 is 8215595136.

63159551280 is a `hidden beast` number, since 6 + 3 + 1 + 59 + 5 + 512 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1035402450 + ... + 1035402510.

It is an arithmetic number, because the mean of its divisors is an integer number (277629056).

Almost surely, 2^63159551280 is an apocalyptic number.

63159551280 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 63159551280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133261946880).

63159551280 is an abundant number, since it is smaller than the sum of its proper divisors (203364342480).

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

63159551280 is a wasteful number, since it uses less digits than its factorization.

63159551280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

It can be divided in two parts, 6315955 and 1280, that added together give a triangular number (6317235 = T₃₅₅₄).

The spelling of 63159551280 in words is "sixty-three billion, one hundred fifty-nine million, five hundred fifty-one thousand, two hundred eighty".