128466516 has 48 divisors (see below), whose sum is σ = 311411520. Its totient is φ = 41184000.

The previous prime is 128466497. The next prime is 128466517. The reversal of 128466516 is 615664821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128466517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37891 + ... + 41141.

It is an arithmetic number, because the mean of its divisors is an integer number (6487740).

Almost surely, 2^128466516 is an apocalyptic number.

It is an amenable number.

128466516 is an abundant number, since it is smaller than the sum of its proper divisors (182945004).

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

128466516 is a wasteful number, since it uses less digits than its factorization.

128466516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384 (or 3382 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 128466516 is about 11334.3070366035. The cubic root of 128466516 is about 504.5799415138.

The spelling of 128466516 in words is "one hundred twenty-eight million, four hundred sixty-six thousand, five hundred sixteen".