63506366880 has 768 divisors, whose sum is σ = 247060316160. Its totient is φ = 13521715200.

The previous prime is 63506366873. The next prime is 63506366887. The reversal of 63506366880 is 8866360536.

It is an interprime number because it is at equal distance from previous prime (63506366873) and next prime (63506366887).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (63506366887) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 80693847 + ... + 80694633.

It is an arithmetic number, because the mean of its divisors is an integer number (321693120).

Almost surely, 2^63506366880 is an apocalyptic number.

63506366880 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 63506366880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123530158080).

63506366880 is an abundant number, since it is smaller than the sum of its proper divisors (183553949280).

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

63506366880 is a wasteful number, since it uses less digits than its factorization.

63506366880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 63506366880 in words is "sixty-three billion, five hundred six million, three hundred sixty-six thousand, eight hundred eighty".