6505164874 has 8 divisors (see below), whose sum is σ = 10508343300. Its totient is φ = 3002383776.

The previous prime is 6505164863. The next prime is 6505164877. The reversal of 6505164874 is 4784615056.

It can be written as a sum of positive squares in 2 ways, for example, as 6465285649 + 39879225 = 80407^2 + 6315^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6505164877) 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, 125099299 + ... + 125099350.

Almost surely, 2^6505164874 is an apocalyptic number.

6505164874 is a deficient number, since it is larger than the sum of its proper divisors (4003178426).

6505164874 is a wasteful number, since it uses less digits than its factorization.

6505164874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250198664.

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 6505164874 is about 80654.6023113374. The cubic root of 6505164874 is about 1866.7497539476.

The spelling of 6505164874 in words is "six billion, five hundred five million, one hundred sixty-four thousand, eight hundred seventy-four".