212665016753 has 16 divisors (see below), whose sum is σ = 244019339520. Its totient is φ = 181554379776.

The previous prime is 212665016749. The next prime is 212665016791. The reversal of 212665016753 is 357610566212.

It is a happy number.

It is not a de Polignac number, because 212665016753 - 2² = 212665016749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212665016743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12983753 + ... + 13000121.

It is an arithmetic number, because the mean of its divisors is an integer number (15251208720).

Almost surely, 2^212665016753 is an apocalyptic number.

It is an amenable number.

212665016753 is a deficient number, since it is larger than the sum of its proper divisors (31354322767).

212665016753 is a wasteful number, since it uses less digits than its factorization.

212665016753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23696.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 212665016753 in words is "two hundred twelve billion, six hundred sixty-five million, sixteen thousand, seven hundred fifty-three".