212161445006303 has 16 divisors (see below), whose sum is σ = 241947062353920. Its totient is φ = 184422913783776.

The previous prime is 212161445006263. The next prime is 212161445006321. The reversal of 212161445006303 is 303600544161212.

It is a cyclic number.

It is not a de Polignac number, because 212161445006303 - 2²⁴ = 212161428229087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212161445002303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2571674975 + ... + 2571757472.

It is an arithmetic number, because the mean of its divisors is an integer number (15121691397120).

Almost surely, 2^{212161445006303} is an apocalyptic number.

212161445006303 is a deficient number, since it is larger than the sum of its proper divisors (29785617347617).

212161445006303 is a wasteful number, since it uses less digits than its factorization.

212161445006303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143432646.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 212161445006303 its reverse (303600544161212), we get a palindrome (515761989167515).

The spelling of 212161445006303 in words is "two hundred twelve trillion, one hundred sixty-one billion, four hundred forty-five million, six thousand, three hundred three".