663847198560 has 3072 divisors, whose sum is σ = 3225393561600. Its totient is φ = 123619737600.

The previous prime is 663847198537. The next prime is 663847198639. The reversal of 663847198560 is 65891748366.

663847198560 is a `hidden beast` number, since 6 + 6 + 384 + 7 + 198 + 5 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 10882740930 + ... + 10882740990.

It is an arithmetic number, because the mean of its divisors is an integer number (1049932800).

Almost surely, 2^663847198560 is an apocalyptic number.

663847198560 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 663847198560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612696780800).

663847198560 is an abundant number, since it is smaller than the sum of its proper divisors (2561546363040).

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

663847198560 is a wasteful number, since it uses less digits than its factorization.

663847198560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 663847198560 in words is "six hundred sixty-three billion, eight hundred forty-seven million, one hundred ninety-eight thousand, five hundred sixty".