211265454514216 has 16 divisors (see below), whose sum is σ = 409782131601300. Its totient is φ = 101990219420544.

The previous prime is 211265454514211. The next prime is 211265454514217. The reversal of 211265454514216 is 612415454562112.

It can be written as a sum of positive squares in 2 ways, for example, as 185615828328100 + 25649626186116 = 13624090^2 + 5064546^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 211265454514216.

It is not an unprimeable number, because it can be changed into a prime (211265454514211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455313479325 + ... + 455313479788.

Almost surely, 2^{211265454514216} is an apocalyptic number.

It is an amenable number.

211265454514216 is a deficient number, since it is larger than the sum of its proper divisors (198516677087084).

211265454514216 is a wasteful number, since it uses less digits than its factorization.

211265454514216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910626959148 (or 910626959144 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 49.

The spelling of 211265454514216 in words is "two hundred eleven trillion, two hundred sixty-five billion, four hundred fifty-four million, five hundred fourteen thousand, two hundred sixteen".