318667156453 has 2 divisors, whose sum is σ = 318667156454. Its totient is φ = 318667156452.

The previous prime is 318667156441. The next prime is 318667156517. The reversal of 318667156453 is 354651766813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258081272289 + 60585884164 = 508017^2 + 246142^2 .

It is a cyclic number.

It is not a de Polignac number, because 318667156453 - 2¹⁷ = 318667025381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318667156394 and 318667156403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318667156553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159333578226 + 159333578227.

It is an arithmetic number, because the mean of its divisors is an integer number (159333578227).

Almost surely, 2^318667156453 is an apocalyptic number.

It is an amenable number.

318667156453 is a deficient number, since it is larger than the sum of its proper divisors (1).

318667156453 is an equidigital number, since it uses as much as digits as its factorization.

318667156453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 55.

The spelling of 318667156453 in words is "three hundred eighteen billion, six hundred sixty-seven million, one hundred fifty-six thousand, four hundred fifty-three".