653212653361 has 4 divisors (see below), whose sum is σ = 653615623924. Its totient is φ = 652809682800.

The previous prime is 653212653299. The next prime is 653212653383. The reversal of 653212653361 is 163356212356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372031683136 + 281180970225 = 609944^2 + 530265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653212653361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653212653761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201482850 + ... + 201486091.

It is an arithmetic number, because the mean of its divisors is an integer number (163403905981).

Almost surely, 2^653212653361 is an apocalyptic number.

It is an amenable number.

653212653361 is a deficient number, since it is larger than the sum of its proper divisors (402970563).

653212653361 is a wasteful number, since it uses less digits than its factorization.

653212653361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402970562.

The product of its digits is 583200, while the sum is 43.

The spelling of 653212653361 in words is "six hundred fifty-three billion, two hundred twelve million, six hundred fifty-three thousand, three hundred sixty-one".