128580568 has 8 divisors (see below), whose sum is σ = 241088580. Its totient is φ = 64290280.

The previous prime is 128580563. The next prime is 128580583. The reversal of 128580568 is 865085821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128580563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8036278 + ... + 8036293.

Almost surely, 2^128580568 is an apocalyptic number.

It is an amenable number.

128580568 is a deficient number, since it is larger than the sum of its proper divisors (112508012).

128580568 is a wasteful number, since it uses less digits than its factorization.

128580568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16072577 (or 16072573 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 43.

The square root of 128580568 is about 11339.3371940339. The cubic root of 128580568 is about 504.7292186206.

The spelling of 128580568 in words is "one hundred twenty-eight million, five hundred eighty thousand, five hundred sixty-eight".