318648236105 has 16 divisors (see below), whose sum is σ = 420003169920. Its totient is φ = 231001740288.

The previous prime is 318648236087. The next prime is 318648236107. The reversal of 318648236105 is 501632846813.

It is a cyclic number.

It is not a de Polignac number, because 318648236105 - 2¹⁶ = 318648170569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318648236105.

It is not an unprimeable number, because it can be changed into a prime (318648236107) 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, 72915032 + ... + 72919401.

It is an arithmetic number, because the mean of its divisors is an integer number (26250198120).

Almost surely, 2^318648236105 is an apocalyptic number.

It is an amenable number.

318648236105 is a deficient number, since it is larger than the sum of its proper divisors (101354933815).

318648236105 is a wasteful number, since it uses less digits than its factorization.

318648236105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145834480.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 318648236105 in words is "three hundred eighteen billion, six hundred forty-eight million, two hundred thirty-six thousand, one hundred five".