210020340504144 has 20 divisors (see below), whose sum is σ = 542552546302496. Its totient is φ = 70006780168032.

The previous prime is 210020340504103. The next prime is 210020340504187. The reversal of 210020340504144 is 441405043020012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187711880204 + ... + 2187711880299.

Almost surely, 2^{210020340504144} is an apocalyptic number.

210020340504144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210020340504144 is an abundant number, since it is smaller than the sum of its proper divisors (332532205798352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210020340504144 is a wasteful number, since it uses less digits than its factorization.

210020340504144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375423760514 (or 4375423760508 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 210020340504144 its reverse (441405043020012), we get a palindrome (651425383524156).

The spelling of 210020340504144 in words is "two hundred ten trillion, twenty billion, three hundred forty million, five hundred four thousand, one hundred forty-four".