655552243213 has 8 divisors (see below), whose sum is σ = 760384692032. Its totient is φ = 553515326496.

The previous prime is 655552243193. The next prime is 655552243259. The reversal of 655552243213 is 312342255556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655552243213 - 2²¹ = 655550146061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655552243213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655552246213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 698882520 + ... + 698883457.

It is an arithmetic number, because the mean of its divisors is an integer number (95048086504).

Almost surely, 2^655552243213 is an apocalyptic number.

It is an amenable number.

655552243213 is a deficient number, since it is larger than the sum of its proper divisors (104832448819).

655552243213 is a wasteful number, since it uses less digits than its factorization.

655552243213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397766051.

The product of its digits is 1080000, while the sum is 43.

Adding to 655552243213 its reverse (312342255556), we get a palindrome (967894498769).

The spelling of 655552243213 in words is "six hundred fifty-five billion, five hundred fifty-two million, two hundred forty-three thousand, two hundred thirteen".