8163020409 has 16 divisors (see below), whose sum is σ = 11447115264. Its totient is φ = 5167094400.

The previous prime is 8163020389. The next prime is 8163020417. The reversal of 8163020409 is 9040203618.

It is not a de Polignac number, because 8163020409 - 2⁸ = 8163020153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8163020409.

It is not an unprimeable number, because it can be changed into a prime (8163021409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823132 + ... + 832989.

It is an arithmetic number, because the mean of its divisors is an integer number (715444704).

Almost surely, 2^8163020409 is an apocalyptic number.

It is an amenable number.

8163020409 is a deficient number, since it is larger than the sum of its proper divisors (3284094855).

8163020409 is a wasteful number, since it uses less digits than its factorization.

8163020409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656208.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 8163020409 is about 90349.4350231367. The cubic root of 8163020409 is about 2013.4937881753.

The spelling of 8163020409 in words is "eight billion, one hundred sixty-three million, twenty thousand, four hundred nine".