128662563200 has 48 divisors (see below), whose sum is σ = 317836746060. Its totient is φ = 51465024000.

The previous prime is 128662563193. The next prime is 128662563203. The reversal of 128662563200 is 2365266821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128662563203) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 20100326 + ... + 20106725.

Almost surely, 2^128662563200 is an apocalyptic number.

128662563200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128662563200 is an abundant number, since it is smaller than the sum of its proper divisors (189174182860).

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

128662563200 is an equidigital number, since it uses as much as digits as its factorization.

128662563200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40207075 (or 40207058 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 128662563200 in words is "one hundred twenty-eight billion, six hundred sixty-two million, five hundred sixty-three thousand, two hundred".