6416538715 has 8 divisors (see below), whose sum is σ = 7742863440. Its totient is φ = 5104552992.

The previous prime is 6416538707. The next prime is 6416538719. The reversal of 6416538715 is 5178356146.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6416538715 - 2³ = 6416538707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6416538719) 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, 3583764 + ... + 3585553.

It is an arithmetic number, because the mean of its divisors is an integer number (967857930).

Almost surely, 2^6416538715 is an apocalyptic number.

6416538715 is a deficient number, since it is larger than the sum of its proper divisors (1326324725).

6416538715 is a wasteful number, since it uses less digits than its factorization.

6416538715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169501.

The product of its digits is 604800, while the sum is 46.

The square root of 6416538715 is about 80103.3002753320. The cubic root of 6416538715 is about 1858.2334476980.

It can be divided in two parts, 641 and 6538715, that added together give a palindrome (6539356).

The spelling of 6416538715 in words is "six billion, four hundred sixteen million, five hundred thirty-eight thousand, seven hundred fifteen".