63330777564 has 72 divisors (see below), whose sum is σ = 159803241360. Its totient is φ = 19496074752.

The previous prime is 63330777553. The next prime is 63330777581. The reversal of 63330777564 is 46577703336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12084 + ... + 356100.

Almost surely, 2^63330777564 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 63330777564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79901620680).

63330777564 is an abundant number, since it is smaller than the sum of its proper divisors (96472463796).

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

63330777564 is a wasteful number, since it uses less digits than its factorization.

63330777564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344099 (or 344074 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 51.

The spelling of 63330777564 in words is "sixty-three billion, three hundred thirty million, seven hundred seventy-seven thousand, five hundred sixty-four".