6506162009 has 4 divisors (see below), whose sum is σ = 6507073716. Its totient is φ = 6505250304.

The previous prime is 6506161997. The next prime is 6506162023. The reversal of 6506162009 is 9002616056.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102961609 + 6403200400 = 10147^2 + 80020^2 .

It is a cyclic number.

It is not a de Polignac number, because 6506162009 - 2⁴ = 6506161993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6506162009.

It is not an unprimeable number, because it can be changed into a prime (6506162059) 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, 445064 + ... + 459449.

It is an arithmetic number, because the mean of its divisors is an integer number (1626768429).

Almost surely, 2^6506162009 is an apocalyptic number.

It is an amenable number.

6506162009 is a deficient number, since it is larger than the sum of its proper divisors (911707).

6506162009 is an equidigital number, since it uses as much as digits as its factorization.

6506162009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911706.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 6506162009 is about 80660.7835878130. The cubic root of 6506162009 is about 1866.8451297735.

The spelling of 6506162009 in words is "six billion, five hundred six million, one hundred sixty-two thousand, nine".