6380128116 has 18 divisors (see below), whose sum is σ = 16127546162. Its totient is φ = 2126709360.

The previous prime is 6380128109. The next prime is 6380128133. The reversal of 6380128116 is 6118210836.

6380128116 is a `hidden beast` number, since 638 + 0 + 1 + 2 + 8 + 1 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5889948516 + 490179600 = 76746^2 + 22140^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 177225781 = 6380128116 / (6 + 3 + 8 + 0 + 1 + 2 + 8 + 1 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88612855 + ... + 88612926.

Almost surely, 2^6380128116 is an apocalyptic number.

It is an amenable number.

6380128116 is an abundant number, since it is smaller than the sum of its proper divisors (9747418046).

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

6380128116 is a wasteful number, since it uses less digits than its factorization.

6380128116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177225791 (or 177225786 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 6380128116 is about 79875.7041659102. The cubic root of 6380128116 is about 1854.7119345961.

The spelling of 6380128116 in words is "six billion, three hundred eighty million, one hundred twenty-eight thousand, one hundred sixteen".