663544500480 has 288 divisors, whose sum is σ = 2493173088000. Its totient is φ = 166536511488.

The previous prime is 663544500467. The next prime is 663544500491. The reversal of 663544500480 is 84005445366.

663544500480 is a `hidden beast` number, since 6 + 63 + 5 + 4 + 4 + 500 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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 31 ways as a sum of consecutive naturals, for example, 22821 + ... + 1152219.

It is an arithmetic number, because the mean of its divisors is an integer number (8656851000).

Almost surely, 2^663544500480 is an apocalyptic number.

663544500480 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 663544500480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246586544000).

663544500480 is an abundant number, since it is smaller than the sum of its proper divisors (1829628587520).

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

663544500480 is a wasteful number, since it uses less digits than its factorization.

663544500480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129446 (or 1129426 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 663544500480 in words is "six hundred sixty-three billion, five hundred forty-four million, five hundred thousand, four hundred eighty".