210553355355203 has 12 divisors (see below), whose sum is σ = 245794888347480. Its totient is φ = 179836586187552.

The previous prime is 210553355355199. The next prime is 210553355355227. The reversal of 210553355355203 is 302553553355012.

It is not a de Polignac number, because 210553355355203 - 2² = 210553355355199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210553355355283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7591871738 + ... + 7591899471.

It is an arithmetic number, because the mean of its divisors is an integer number (20482907362290).

Almost surely, 2^{210553355355203} is an apocalyptic number.

210553355355203 is a deficient number, since it is larger than the sum of its proper divisors (35241532992277).

210553355355203 is a wasteful number, since it uses less digits than its factorization.

210553355355203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15183771506 (or 15183771499 counting only the distinct ones).

The product of its (nonzero) digits is 5062500, while the sum is 47.

The spelling of 210553355355203 in words is "two hundred ten trillion, five hundred fifty-three billion, three hundred fifty-five million, three hundred fifty-five thousand, two hundred three".