63766368720 has 240 divisors, whose sum is σ = 222484010112. Its totient is φ = 16973452800.

The previous prime is 63766368707. The next prime is 63766368737. The reversal of 63766368720 is 2786366736.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×63766368720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 11914045 + ... + 11919395.

Almost surely, 2^63766368720 is an apocalyptic number.

63766368720 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 63766368720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111242005056).

63766368720 is an abundant number, since it is smaller than the sum of its proper divisors (158717641392).

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

63766368720 is a wasteful number, since it uses less digits than its factorization.

63766368720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992 (or 5974 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 54.

The spelling of 63766368720 in words is "sixty-three billion, seven hundred sixty-six million, three hundred sixty-eight thousand, seven hundred twenty".