218103867113512 has 16 divisors (see below), whose sum is σ = 419997311671860. Its totient is φ = 106104584001024.

The previous prime is 218103867113501. The next prime is 218103867113567. The reversal of 218103867113512 is 215311768301812.

It can be written as a sum of positive squares in 2 ways, for example, as 217801338512836 + 302528600676 = 14758094^2 + 550026^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368418694153 + ... + 368418694744.

Almost surely, 2^{218103867113512} is an apocalyptic number.

It is an amenable number.

218103867113512 is a deficient number, since it is larger than the sum of its proper divisors (201893444558348).

218103867113512 is a wasteful number, since it uses less digits than its factorization.

218103867113512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736837388940 (or 736837388936 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 218103867113512 in words is "two hundred eighteen trillion, one hundred three billion, eight hundred sixty-seven million, one hundred thirteen thousand, five hundred twelve".