318877161117 has 16 divisors (see below), whose sum is σ = 425708133312. Its totient is φ = 212315575680.

The previous prime is 318877161049. The next prime is 318877161121. The reversal of 318877161117 is 711161778813.

It is not a de Polignac number, because 318877161117 - 2⁷ = 318877160989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318877161117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318877161817) 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, 21122742 + ... + 21137832.

It is an arithmetic number, because the mean of its divisors is an integer number (26606758332).

Almost surely, 2^318877161117 is an apocalyptic number.

It is an amenable number.

318877161117 is a deficient number, since it is larger than the sum of its proper divisors (106830972195).

318877161117 is a wasteful number, since it uses less digits than its factorization.

318877161117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23548.

The product of its digits is 395136, while the sum is 51.

The spelling of 318877161117 in words is "three hundred eighteen billion, eight hundred seventy-seven million, one hundred sixty-one thousand, one hundred seventeen".