128055149190 has 48 divisors (see below), whose sum is σ = 333020823408. Its totient is φ = 34140097728.

The previous prime is 128055149179. The next prime is 128055149197. The reversal of 128055149190 is 91941550821.

128055149190 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 551 + 4 + 9 + 1 + 90 = 666.

It is a super-2 number, since 2×128055149190² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128055149197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228849 + ... + 555411.

It is an arithmetic number, because the mean of its divisors is an integer number (6937933821).

Almost surely, 2^128055149190 is an apocalyptic number.

128055149190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128055149190 is an abundant number, since it is smaller than the sum of its proper divisors (204965674218).

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

128055149190 is a wasteful number, since it uses less digits than its factorization.

128055149190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330933 (or 330930 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 128055149190 in words is "one hundred twenty-eight billion, fifty-five million, one hundred forty-nine thousand, one hundred ninety".