1241405042555 has 16 divisors (see below), whose sum is σ = 1555462656000. Its totient is φ = 949328944608.

The previous prime is 1241405042533. The next prime is 1241405042593. The reversal of 1241405042555 is 5552405041421.

It is a cyclic number.

It is not a de Polignac number, because 1241405042555 - 2⁶ = 1241405042491 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, 3320555 + ... + 3675444.

It is an arithmetic number, because the mean of its divisors is an integer number (97216416000).

Almost surely, 2^{1241405042555} is an apocalyptic number.

1241405042555 is a deficient number, since it is larger than the sum of its proper divisors (314057613445).

1241405042555 is a wasteful number, since it uses less digits than its factorization.

1241405042555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6997570.

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 1241405042555 in words is "one trillion, two hundred forty-one billion, four hundred five million, forty-two thousand, five hundred fifty-five".