63366390720 has 672 divisors, whose sum is σ = 236592685056. Its totient is φ = 16124313600.

The previous prime is 63366390691. The next prime is 63366390727. The reversal of 63366390720 is 2709366336.

63366390720 is a `hidden beast` number, since 6 + 3 + 3 + 6 + 639 + 0 + 7 + 2 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63366390727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 233824185 + ... + 233824455.

It is an arithmetic number, because the mean of its divisors is an integer number (352072448).

Almost surely, 2^63366390720 is an apocalyptic number.

63366390720 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 63366390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118296342528).

63366390720 is an abundant number, since it is smaller than the sum of its proper divisors (173226294336).

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

63366390720 is a wasteful number, since it uses less digits than its factorization.

63366390720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 45.

The spelling of 63366390720 in words is "sixty-three billion, three hundred sixty-six million, three hundred ninety thousand, seven hundred twenty".