20543302355 has 8 divisors (see below), whose sum is σ = 25253230464. Its totient is φ = 16033796800.

The previous prime is 20543302343. The next prime is 20543302369. The reversal of 20543302355 is 55320334502.

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

It is not a de Polignac number, because 20543302355 - 2²⁴ = 20526525139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 50105411 + ... + 50105820.

It is an arithmetic number, because the mean of its divisors is an integer number (3156653808).

Almost surely, 2^20543302355 is an apocalyptic number.

20543302355 is a deficient number, since it is larger than the sum of its proper divisors (4709928109).

20543302355 is a wasteful number, since it uses less digits than its factorization.

20543302355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100211277.

The product of its (nonzero) digits is 54000, while the sum is 32.

Adding to 20543302355 its reverse (55320334502), we get a palindrome (75863636857).

The spelling of 20543302355 in words is "twenty billion, five hundred forty-three million, three hundred two thousand, three hundred fifty-five".