201553205343 has 16 divisors (see below), whose sum is σ = 320482116096. Its totient is φ = 110165726880.

The previous prime is 201553205339. The next prime is 201553205383. The reversal of 201553205343 is 343502355102.

It is not a de Polignac number, because 201553205343 - 2² = 201553205339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201553205383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208646728 + ... + 208647693.

It is an arithmetic number, because the mean of its divisors is an integer number (20030132256).

Almost surely, 2^201553205343 is an apocalyptic number.

201553205343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201553205343 is a deficient number, since it is larger than the sum of its proper divisors (118928910753).

201553205343 is a wasteful number, since it uses less digits than its factorization.

201553205343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417294454.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 201553205343 in words is "two hundred one billion, five hundred fifty-three million, two hundred five thousand, three hundred forty-three".