128851366 has 16 divisors (see below), whose sum is σ = 222112800. Its totient is φ = 54915840.

The previous prime is 128851363. The next prime is 128851403. The reversal of 128851366 is 663158821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128851361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22891 + ... + 27958.

It is an arithmetic number, because the mean of its divisors is an integer number (13882050).

Almost surely, 2^128851366 is an apocalyptic number.

128851366 is a deficient number, since it is larger than the sum of its proper divisors (93261434).

128851366 is a wasteful number, since it uses less digits than its factorization.

128851366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51039.

The product of its digits is 69120, while the sum is 40.

The square root of 128851366 is about 11351.2715587286. The cubic root of 128851366 is about 505.0832996596.

The spelling of 128851366 in words is "one hundred twenty-eight million, eight hundred fifty-one thousand, three hundred sixty-six".