1361363342555 has 4 divisors (see below), whose sum is σ = 1633636011072. Its totient is φ = 1089090674040.

The previous prime is 1361363342543. The next prime is 1361363342611. The reversal of 1361363342555 is 5552433631631.

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

It is not a de Polignac number, because 1361363342555 - 2⁸ = 1361363342299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136136334251 + ... + 136136334260.

It is an arithmetic number, because the mean of its divisors is an integer number (408409002768).

Almost surely, 2^{1361363342555} is an apocalyptic number.

1361363342555 is a deficient number, since it is larger than the sum of its proper divisors (272272668517).

1361363342555 is an equidigital number, since it uses as much as digits as its factorization.

1361363342555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272272668516.

The product of its digits is 2916000, while the sum is 47.

The spelling of 1361363342555 in words is "one trillion, three hundred sixty-one billion, three hundred sixty-three million, three hundred forty-two thousand, five hundred fifty-five".