128255504546806 has 32 divisors (see below), whose sum is σ = 236792232085248. Its totient is φ = 50735690128800.

The previous prime is 128255504546783. The next prime is 128255504546857. The reversal of 128255504546806 is 608645405552821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15738460 + ... + 22454623.

It is an arithmetic number, because the mean of its divisors is an integer number (7399757252664).

Almost surely, 2^{128255504546806} is an apocalyptic number.

128255504546806 is a deficient number, since it is larger than the sum of its proper divisors (108536727538442).

128255504546806 is a wasteful number, since it uses less digits than its factorization.

128255504546806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38211556.

The product of its (nonzero) digits is 92160000, while the sum is 61.

The spelling of 128255504546806 in words is "one hundred twenty-eight trillion, two hundred fifty-five billion, five hundred four million, five hundred forty-six thousand, eight hundred six".