211265464663144 has 16 divisors (see below), whose sum is σ = 396764760428100. Its totient is φ = 105461528548992.

The previous prime is 211265464663093. The next prime is 211265464663159. The reversal of 211265464663144 is 441366464562112.

It can be written as a sum of positive squares in 2 ways, for example, as 209431200740644 + 1834263922500 = 14471738^2 + 1354350^2 .

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, 21400467579 + ... + 21400477450.

Almost surely, 2^{211265464663144} is an apocalyptic number.

It is an amenable number.

211265464663144 is a deficient number, since it is larger than the sum of its proper divisors (185499295764956).

211265464663144 is a wasteful number, since it uses less digits than its factorization.

211265464663144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42800945652 (or 42800945648 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 55.

The spelling of 211265464663144 in words is "two hundred eleven trillion, two hundred sixty-five billion, four hundred sixty-four million, six hundred sixty-three thousand, one hundred forty-four".