201255453543 has 8 divisors (see below), whose sum is σ = 268636463488. Its totient is φ = 134022372984.

The previous prime is 201255453521. The next prime is 201255453551. The reversal of 201255453543 is 345354552102.

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

It is not a de Polignac number, because 201255453543 - 2⁹ = 201255453031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201255453143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36979171 + ... + 36984612.

It is an arithmetic number, because the mean of its divisors is an integer number (33579557936).

Almost surely, 2^201255453543 is an apocalyptic number.

201255453543 is a deficient number, since it is larger than the sum of its proper divisors (67381009945).

201255453543 is an equidigital number, since it uses as much as digits as its factorization.

201255453543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73964693.

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 201255453543 in words is "two hundred one billion, two hundred fifty-five million, four hundred fifty-three thousand, five hundred forty-three".