128655572190 has 64 divisors (see below), whose sum is σ = 322257954816. Its totient is φ = 32810418432.

The previous prime is 128655572179. The next prime is 128655572293. The reversal of 128655572190 is 91275556821.

It is a super-2 number, since 2×128655572190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4611162 + ... + 4638978.

It is an arithmetic number, because the mean of its divisors is an integer number (5035280544).

Almost surely, 2^128655572190 is an apocalyptic number.

128655572190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128655572190 is an abundant number, since it is smaller than the sum of its proper divisors (193602382626).

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

128655572190 is a wasteful number, since it uses less digits than its factorization.

128655572190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34553.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 128655572190 in words is "one hundred twenty-eight billion, six hundred fifty-five million, five hundred seventy-two thousand, one hundred ninety".