20555330343 has 8 divisors (see below), whose sum is σ = 29019289968. Its totient is φ = 12897462144.

The previous prime is 20555330333. The next prime is 20555330359. The reversal of 20555330343 is 34303355502.

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

It is not a de Polignac number, because 20555330343 - 2⁸ = 20555330087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20555330303) 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 7 ways as a sum of consecutive naturals, for example, 201522796 + ... + 201522897.

It is an arithmetic number, because the mean of its divisors is an integer number (3627411246).

Almost surely, 2^20555330343 is an apocalyptic number.

20555330343 is a deficient number, since it is larger than the sum of its proper divisors (8463959625).

20555330343 is a wasteful number, since it uses less digits than its factorization.

20555330343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403045713.

The product of its (nonzero) digits is 81000, while the sum is 33.

Adding to 20555330343 its reverse (34303355502), we get a palindrome (54858685845).

The spelling of 20555330343 in words is "twenty billion, five hundred fifty-five million, three hundred thirty thousand, three hundred forty-three".