211316334450145 has 4 divisors (see below), whose sum is σ = 253579601340180. Its totient is φ = 169053067560112.

The previous prime is 211316334450127. The next prime is 211316334450167. The reversal of 211316334450145 is 541054433613112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49189897629601 + 162126436820544 = 7013551^2 + 12732888^2 .

It is a cyclic number.

It is not a de Polignac number, because 211316334450145 - 2⁷ = 211316334450017 is a prime.

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, 21131633445010 + ... + 21131633445019.

It is an arithmetic number, because the mean of its divisors is an integer number (63394900335045).

Almost surely, 2^{211316334450145} is an apocalyptic number.

It is an amenable number.

211316334450145 is a deficient number, since it is larger than the sum of its proper divisors (42263266890035).

211316334450145 is an equidigital number, since it uses as much as digits as its factorization.

211316334450145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42263266890034.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 211316334450145 in words is "two hundred eleven trillion, three hundred sixteen billion, three hundred thirty-four million, four hundred fifty thousand, one hundred forty-five".