128032270554820 has 24 divisors (see below), whose sum is σ = 273424848984000. Its totient is φ = 50344892827872.

The previous prime is 128032270554803. The next prime is 128032270554833. The reversal of 128032270554820 is 28455072230821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54250960920 + ... + 54250963279.

It is an arithmetic number, because the mean of its divisors is an integer number (11392702041000).

Almost surely, 2^{128032270554820} is an apocalyptic number.

128032270554820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128032270554820 is an abundant number, since it is smaller than the sum of its proper divisors (145392578429180).

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

128032270554820 is a wasteful number, since it uses less digits than its factorization.

128032270554820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108501924267 (or 108501924265 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 128032270554820 in words is "one hundred twenty-eight trillion, thirty-two billion, two hundred seventy million, five hundred fifty-four thousand, eight hundred twenty".