128257852101056 has 56 divisors (see below), whose sum is σ = 263414928023040. Its totient is φ = 61896503289600.

The previous prime is 128257852101013. The next prime is 128257852101161. The reversal of 128257852101056 is 650101258752821.

It is a junction number, because it is equal to n+sod(n) for n = 128257852100989 and 128257852101007.

It is a congruent number.

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, 84533150 + ... + 86037021.

Almost surely, 2^{128257852101056} is an apocalyptic number.

128257852101056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128257852101056 is an abundant number, since it is smaller than the sum of its proper divisors (135157075921984).

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

128257852101056 is a wasteful number, since it uses less digits than its factorization.

128257852101056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170570593 (or 170570583 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 53.

The spelling of 128257852101056 in words is "one hundred twenty-eight trillion, two hundred fifty-seven billion, eight hundred fifty-two million, one hundred one thousand, fifty-six".