128196799200 has 288 divisors, whose sum is σ = 474956788320. Its totient is φ = 33351782400.

The previous prime is 128196799153. The next prime is 128196799219. The reversal of 128196799200 is 2997691821.

128196799200 is a `hidden beast` number, since 1 + 281 + 96 + 79 + 9 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 813222 + ... + 957978.

It is an arithmetic number, because the mean of its divisors is an integer number (1649155515).

Almost surely, 2^128196799200 is an apocalyptic number.

128196799200 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 128196799200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237478394160).

128196799200 is an abundant number, since it is smaller than the sum of its proper divisors (346759989120).

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

128196799200 is a wasteful number, since it uses less digits than its factorization.

128196799200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144827 (or 144808 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 128196799200 in words is "one hundred twenty-eight billion, one hundred ninety-six million, seven hundred ninety-nine thousand, two hundred".