218768046662 has 16 divisors (see below), whose sum is σ = 358118198784. Its totient is φ = 99402765000.

The previous prime is 218768046647. The next prime is 218768046683. The reversal of 218768046662 is 266640867812.

It is a junction number, because it is equal to n+sod(n) for n = 218768046598 and 218768046607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802714 + ... + 1920237.

It is an arithmetic number, because the mean of its divisors is an integer number (22382387424).

Almost surely, 2^218768046662 is an apocalyptic number.

218768046662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

218768046662 is a deficient number, since it is larger than the sum of its proper divisors (139350152122).

218768046662 is a wasteful number, since it uses less digits than its factorization.

218768046662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725635.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 218768046662 in words is "two hundred eighteen billion, seven hundred sixty-eight million, forty-six thousand, six hundred sixty-two".