1543341421255 has 4 divisors (see below), whose sum is σ = 1852009705512. Its totient is φ = 1234673137000.

The previous prime is 1543341421159. The next prime is 1543341421267. The reversal of 1543341421255 is 5521241433451.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1543341421255 - 2⁹ = 1543341420743 is a prime.

It is a super-2 number, since 2×1543341421255² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154334142121 + ... + 154334142130.

It is an arithmetic number, because the mean of its divisors is an integer number (463002426378).

Almost surely, 2^{1543341421255} is an apocalyptic number.

1543341421255 is a deficient number, since it is larger than the sum of its proper divisors (308668284257).

1543341421255 is an equidigital number, since it uses as much as digits as its factorization.

1543341421255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308668284256.

The product of its digits is 288000, while the sum is 40.

The spelling of 1543341421255 in words is "one trillion, five hundred forty-three billion, three hundred forty-one million, four hundred twenty-one thousand, two hundred fifty-five".