128064056 has 32 divisors (see below), whose sum is σ = 245784000. Its totient is φ = 62539776.

The previous prime is 128064037. The next prime is 128064089. The reversal of 128064056 is 650460821.

It is a super-2 number, since 2×128064056² = 32800804878342272, which contains 22 as substring.

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, 60260 + ... + 62348.

It is an arithmetic number, because the mean of its divisors is an integer number (7680750).

Almost surely, 2^128064056 is an apocalyptic number.

It is an amenable number.

128064056 is a deficient number, since it is larger than the sum of its proper divisors (117719944).

128064056 is a wasteful number, since it uses less digits than its factorization.

128064056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 128064056 is about 11316.5390468995. The cubic root of 128064056 is about 504.0524741703.

The spelling of 128064056 in words is "one hundred twenty-eight million, sixty-four thousand, fifty-six".