212696576388665 has 16 divisors (see below), whose sum is σ = 272679350099520. Its totient is φ = 158795621519040.

The previous prime is 212696576388521. The next prime is 212696576388671. The reversal of 212696576388665 is 566883675696212.

212696576388665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212696576388665 - 2¹² = 212696576384569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212696576388665.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16708287146 + ... + 16708299875.

It is an arithmetic number, because the mean of its divisors is an integer number (17042459381220).

Almost surely, 2^{212696576388665} is an apocalyptic number.

It is an amenable number.

212696576388665 is a deficient number, since it is larger than the sum of its proper divisors (59982773710855).

212696576388665 is a wasteful number, since it uses less digits than its factorization.

212696576388665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33416587112.

The product of its digits is 9405849600, while the sum is 80.

The spelling of 212696576388665 in words is "two hundred twelve trillion, six hundred ninety-six billion, five hundred seventy-six million, three hundred eighty-eight thousand, six hundred sixty-five".