128651016 has 32 divisors (see below), whose sum is σ = 346368960. Its totient is φ = 39584832.

The previous prime is 128651011. The next prime is 128651027. The reversal of 128651016 is 610156821.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (128651011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205860 + ... + 206483.

It is an arithmetic number, because the mean of its divisors is an integer number (10824030).

Almost surely, 2^128651016 is an apocalyptic number.

It is an amenable number.

128651016 is an abundant number, since it is smaller than the sum of its proper divisors (217717944).

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

128651016 is a wasteful number, since it uses less digits than its factorization.

128651016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412365 (or 412361 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 128651016 is about 11342.4431230666. The cubic root of 128651016 is about 504.8213804787.

The spelling of 128651016 in words is "one hundred twenty-eight million, six hundred fifty-one thousand, sixteen".