211345554062545 has 12 divisors (see below), whose sum is σ = 295021140773364. Its totient is φ = 144922665642720.

The previous prime is 211345554062501. The next prime is 211345554062551. The reversal of 211345554062545 is 545260455543112.

211345554062545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 85033332707904 + 126312221354641 = 9221352^2 + 11238871^2 .

It is not a de Polignac number, because 211345554062545 - 2²³ = 211345545673937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211345554062492 and 211345554062501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431317457026 + ... + 431317457515.

It is an arithmetic number, because the mean of its divisors is an integer number (24585095064447).

Almost surely, 2^{211345554062545} is an apocalyptic number.

It is an amenable number.

211345554062545 is a deficient number, since it is larger than the sum of its proper divisors (83675586710819).

211345554062545 is an equidigital number, since it uses as much as digits as its factorization.

211345554062545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862634914560 (or 862634914553 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 52.

The spelling of 211345554062545 in words is "two hundred eleven trillion, three hundred forty-five billion, five hundred fifty-four million, sixty-two thousand, five hundred forty-five".