63559261560 has 256 divisors, whose sum is σ = 203460341760. Its totient is φ = 15855575040.

The previous prime is 63559261501. The next prime is 63559261631. The reversal of 63559261560 is 6516295536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22433904 + ... + 22436736.

It is an arithmetic number, because the mean of its divisors is an integer number (794766960).

Almost surely, 2^63559261560 is an apocalyptic number.

63559261560 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 63559261560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101730170880).

63559261560 is an abundant number, since it is smaller than the sum of its proper divisors (139901080200).

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

63559261560 is a wasteful number, since it uses less digits than its factorization.

63559261560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 63559261560 in words is "sixty-three billion, five hundred fifty-nine million, two hundred sixty-one thousand, five hundred sixty".