63316961280 has 480 divisors, whose sum is σ = 236886249600. Its totient is φ = 16145547264.

The previous prime is 63316961221. The next prime is 63316961299. The reversal of 63316961280 is 8216961336.

63316961280 is a `hidden beast` number, since 633 + 1 + 6 + 9 + 6 + 1 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19075461 + ... + 19078779.

It is an arithmetic number, because the mean of its divisors is an integer number (493513020).

Almost surely, 2^63316961280 is an apocalyptic number.

63316961280 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 63316961280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118443124800).

63316961280 is an abundant number, since it is smaller than the sum of its proper divisors (173569288320).

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

63316961280 is a wasteful number, since it uses less digits than its factorization.

63316961280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381 (or 3352 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

It can be divided in two parts, 63316 and 961280, that added together give a triangular number (1024596 = T₁₄₃₁).

The spelling of 63316961280 in words is "sixty-three billion, three hundred sixteen million, nine hundred sixty-one thousand, two hundred eighty".