218919496316 has 12 divisors (see below), whose sum is σ = 395467477440. Its totient is φ = 105928788480.

The previous prime is 218919496273. The next prime is 218919496331. The reversal of 218919496316 is 613694919812.

It is a super-2 number, since 2×218919496316² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882739781 + ... + 882740028.

It is an arithmetic number, because the mean of its divisors is an integer number (32955623120).

Almost surely, 2^218919496316 is an apocalyptic number.

It is an amenable number.

218919496316 is a deficient number, since it is larger than the sum of its proper divisors (176547981124).

218919496316 is a wasteful number, since it uses less digits than its factorization.

218919496316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765479844 (or 1765479842 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 59.

It can be divided in two parts, 218919496 and 316, that added together give a palindrome (218919812).

The spelling of 218919496316 in words is "two hundred eighteen billion, nine hundred nineteen million, four hundred ninety-six thousand, three hundred sixteen".