218211741696 has 104 divisors (see below), whose sum is σ = 626583322960. Its totient is φ = 67142025216.

The previous prime is 218211741661. The next prime is 218211741743. The reversal of 218211741696 is 696147112812.

It is a tau number, because it is divible by the number of its divisors (104).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 523261 + ... + 842748.

Almost surely, 2^218211741696 is an apocalyptic number.

218211741696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

218211741696 is an abundant number, since it is smaller than the sum of its proper divisors (408371581264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218211741696 is a wasteful number, since it uses less digits than its factorization.

218211741696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366049 (or 1366027 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The spelling of 218211741696 in words is "two hundred eighteen billion, two hundred eleven million, seven hundred forty-one thousand, six hundred ninety-six".