63138816000 has 1344 divisors, whose sum is σ = 267924174336. Its totient is φ = 14155776000.

The previous prime is 63138815989. The next prime is 63138816023. The reversal of 63138816000 is 61883136.

63138816000 is a `hidden beast` number, since 631 + 3 + 8 + 8 + 16 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2036735985 + ... + 2036736015.

It is an arithmetic number, because the mean of its divisors is an integer number (199348344).

Almost surely, 2^63138816000 is an apocalyptic number.

63138816000 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 63138816000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133962087168).

63138816000 is an abundant number, since it is smaller than the sum of its proper divisors (204785358336).

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

63138816000 is a wasteful number, since it uses less digits than its factorization.

63138816000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 63138816000 in words is "sixty-three billion, one hundred thirty-eight million, eight hundred sixteen thousand".