128353211136 has 108 divisors (see below), whose sum is σ = 370818903000. Its totient is φ = 42698280960.

The previous prime is 128353211117. The next prime is 128353211167. The reversal of 128353211136 is 631112353821.

128353211136 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 532 + 1 + 113 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128353211136.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1093876 + ... + 1205516.

Almost surely, 2^128353211136 is an apocalyptic number.

128353211136 is a gapful number since it is divisible by the number (16) 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 128353211136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185409451500).

128353211136 is an abundant number, since it is smaller than the sum of its proper divisors (242465691864).

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

128353211136 is a wasteful number, since it uses less digits than its factorization.

128353211136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112162 (or 112145 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

Adding to 128353211136 its reverse (631112353821), we get a palindrome (759465564957).

The spelling of 128353211136 in words is "one hundred twenty-eight billion, three hundred fifty-three million, two hundred eleven thousand, one hundred thirty-six".