63999225000 has 576 divisors, whose sum is σ = 230329008000. Its totient is φ = 16019520000.

The previous prime is 63999224963. The next prime is 63999225007. The reversal of 63999225000 is 52299936.

63999225000 is a `hidden beast` number, since 6 + 39 + 99 + 22 + 500 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (63999225007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 429524926 + ... + 429525074.

It is an arithmetic number, because the mean of its divisors is an integer number (399876750).

Almost surely, 2^63999225000 is an apocalyptic number.

63999225000 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 63999225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115164504000).

63999225000 is an abundant number, since it is smaller than the sum of its proper divisors (166329783000).

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

63999225000 is a wasteful number, since it uses less digits than its factorization.

63999225000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 63999225000 in words is "sixty-three billion, nine hundred ninety-nine million, two hundred twenty-five thousand".