8018140505 has 16 divisors (see below), whose sum is σ = 10147680000. Its totient is φ = 6065205120.

The previous prime is 8018140489. The next prime is 8018140511. The reversal of 8018140505 is 5050418108.

It is not a de Polignac number, because 8018140505 - 2⁴ = 8018140489 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31505 + ... + 130494.

It is an arithmetic number, because the mean of its divisors is an integer number (634230000).

Almost surely, 2^8018140505 is an apocalyptic number.

It is an amenable number.

8018140505 is a deficient number, since it is larger than the sum of its proper divisors (2129539495).

8018140505 is a wasteful number, since it uses less digits than its factorization.

8018140505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162544.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 8018140505 is about 89544.0701833460. The cubic root of 8018140505 is about 2001.5105675556.

The spelling of 8018140505 in words is "eight billion, eighteen million, one hundred forty thousand, five hundred five".