211305116666042 has 32 divisors (see below), whose sum is σ = 369948568757760. Its totient is φ = 88631571409920.

The previous prime is 211305116666009. The next prime is 211305116666051. The reversal of 211305116666042 is 240666611503112.

It is a junction number, because it is equal to n+sod(n) for n = 211305116665984 and 211305116666002.

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, 60068792 + ... + 63489132.

It is an arithmetic number, because the mean of its divisors is an integer number (11560892773680).

Almost surely, 2^{211305116666042} is an apocalyptic number.

211305116666042 is a deficient number, since it is larger than the sum of its proper divisors (158643452091718).

211305116666042 is a wasteful number, since it uses less digits than its factorization.

211305116666042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514286.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 211305116666042 in words is "two hundred eleven trillion, three hundred five billion, one hundred sixteen million, six hundred sixty-six thousand, forty-two".