6432165139 has 4 divisors (see below), whose sum is σ = 6442200360. Its totient is φ = 6422129920.

The previous prime is 6432165109. The next prime is 6432165161. The reversal of 6432165139 is 9315612346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6432165139 - 2⁷ = 6432165011 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6432165109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5016649 + ... + 5017930.

It is an arithmetic number, because the mean of its divisors is an integer number (1610550090).

Almost surely, 2^6432165139 is an apocalyptic number.

6432165139 is a deficient number, since it is larger than the sum of its proper divisors (10035221).

6432165139 is a wasteful number, since it uses less digits than its factorization.

6432165139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035220.

The product of its digits is 116640, while the sum is 40.

The square root of 6432165139 is about 80200.7801645346. The cubic root of 6432165139 is about 1859.7406987160.

The spelling of 6432165139 in words is "six billion, four hundred thirty-two million, one hundred sixty-five thousand, one hundred thirty-nine".