1305841122555 has 16 divisors (see below), whose sum is σ = 2096728650240. Its totient is φ = 693987647328.

The previous prime is 1305841122541. The next prime is 1305841122571. The reversal of 1305841122555 is 5552211485031.

It is not a de Polignac number, because 1305841122555 - 2⁴ = 1305841122539 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153805075 + ... + 153813564.

It is an arithmetic number, because the mean of its divisors is an integer number (131045540640).

Almost surely, 2^{1305841122555} is an apocalyptic number.

1305841122555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1305841122555 is a deficient number, since it is larger than the sum of its proper divisors (790887527685).

1305841122555 is a wasteful number, since it uses less digits than its factorization.

1305841122555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307618930.

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 1305841122555 in words is "one trillion, three hundred five billion, eight hundred forty-one million, one hundred twenty-two thousand, five hundred fifty-five".