211452441545 has 16 divisors (see below), whose sum is σ = 266528731392. Its totient is φ = 160735502400.

The previous prime is 211452441523. The next prime is 211452441553. The reversal of 211452441545 is 545144254112.

211452441545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211452441545 - 2⁸ = 211452441289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211452441499 and 211452441508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6071102 + ... + 6105831.

It is an arithmetic number, because the mean of its divisors is an integer number (16658045712).

Almost surely, 2^211452441545 is an apocalyptic number.

It is an amenable number.

211452441545 is a deficient number, since it is larger than the sum of its proper divisors (55076289847).

211452441545 is a wasteful number, since it uses less digits than its factorization.

211452441545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12177112.

The product of its digits is 128000, while the sum is 38.

Adding to 211452441545 its reverse (545144254112), we get a palindrome (756596695657).

The spelling of 211452441545 in words is "two hundred eleven billion, four hundred fifty-two million, four hundred forty-one thousand, five hundred forty-five".