218288135631616 has 72 divisors (see below), whose sum is σ = 436645704332880. Its totient is φ = 108913239773184.

The previous prime is 218288135631589. The next prime is 218288135631623. The reversal of 218288135631616 is 616136531882812.

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, 365914830 + ... + 366510898.

It is an arithmetic number, because the mean of its divisors is an integer number (6064523671290).

Almost surely, 2^{218288135631616} is an apocalyptic number.

It is an amenable number.

218288135631616 is an abundant number, since it is smaller than the sum of its proper divisors (218357568701264).

218288135631616 is an equidigital number, since it uses as much as digits as its factorization.

218288135631616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599109 (or 599095 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 61.

The spelling of 218288135631616 in words is "two hundred eighteen trillion, two hundred eighty-eight billion, one hundred thirty-five million, six hundred thirty-one thousand, six hundred sixteen".