128799015628800 has 1248 divisors, whose sum is σ = 476694465672960. Its totient is φ = 30417826611200.

The previous prime is 128799015628691. The next prime is 128799015628873. The reversal of 128799015628800 is 8826510997821.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22529123542 + ... + 22529129258.

Almost surely, 2^{128799015628800} is an apocalyptic number.

128799015628800 is a gapful number since it is divisible by the number (10) 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 128799015628800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238347232836480).

128799015628800 is an abundant number, since it is smaller than the sum of its proper divisors (347895450044160).

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

128799015628800 is a wasteful number, since it uses less digits than its factorization.

128799015628800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937 (or 5910 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 66.

The spelling of 128799015628800 in words is "one hundred twenty-eight trillion, seven hundred ninety-nine billion, fifteen million, six hundred twenty-eight thousand, eight hundred".