128253298099500 has 288 divisors, whose sum is σ = 477311890857984. Its totient is φ = 28369392912000.

The previous prime is 128253298099471. The next prime is 128253298099501. The reversal of 128253298099500 is 5990892352821.

128253298099500 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 5 + 32 + 9 + 8 + 0 + 99 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (128253298099501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64693392 + ... + 66646391.

It is an arithmetic number, because the mean of its divisors is an integer number (1657332954368).

Almost surely, 2^{128253298099500} is an apocalyptic number.

128253298099500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128253298099500 is an abundant number, since it is smaller than the sum of its proper divisors (349058592758484).

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

128253298099500 is a wasteful number, since it uses less digits than its factorization.

128253298099500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131339846 (or 131339831 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 128253298099500 in words is "one hundred twenty-eight trillion, two hundred fifty-three billion, two hundred ninety-eight million, ninety-nine thousand, five hundred".