63322550064 has 160 divisors (see below), whose sum is σ = 186912411840. Its totient is φ = 20510558208.

The previous prime is 63322550063. The next prime is 63322550087. The reversal of 63322550064 is 46005522336.

63322550064 is a `hidden beast` number, since 63 + 32 + 2 + 5 + 500 + 64 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (63322550063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15230674 + ... + 15234830.

It is an arithmetic number, because the mean of its divisors is an integer number (1168202574).

Almost surely, 2^63322550064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63322550064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93456205920).

63322550064 is an abundant number, since it is smaller than the sum of its proper divisors (123589861776).

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

63322550064 is a wasteful number, since it uses less digits than its factorization.

63322550064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164 (or 5152 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 63322550064 in words is "sixty-three billion, three hundred twenty-two million, five hundred fifty thousand, sixty-four".