63370009920 has 448 divisors, whose sum is σ = 243742464000. Its totient is φ = 13626040320.

The previous prime is 63370009919. The next prime is 63370009933. The reversal of 63370009920 is 2990007336.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19022655 + ... + 19025985.

It is an arithmetic number, because the mean of its divisors is an integer number (544068000).

Almost surely, 2^63370009920 is an apocalyptic number.

63370009920 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 63370009920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121871232000).

63370009920 is an abundant number, since it is smaller than the sum of its proper divisors (180372454080).

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

63370009920 is a wasteful number, since it uses less digits than its factorization.

63370009920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 3516 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 39.

The spelling of 63370009920 in words is "sixty-three billion, three hundred seventy million, nine thousand, nine hundred twenty".