1105105600491 has 4 divisors (see below), whose sum is σ = 1473474133992. Its totient is φ = 736737066992.

The previous prime is 1105105600457. The next prime is 1105105600493. The reversal of 1105105600491 is 1940065015011.

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

It is a cyclic number.

It is not a de Polignac number, because 1105105600491 - 2⁹ = 1105105599979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1105105600493) by changing a digit.

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, 184184266746 + ... + 184184266751.

It is an arithmetic number, because the mean of its divisors is an integer number (368368533498).

Almost surely, 2^{1105105600491} is an apocalyptic number.

1105105600491 is a deficient number, since it is larger than the sum of its proper divisors (368368533501).

1105105600491 is an equidigital number, since it uses as much as digits as its factorization.

1105105600491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368368533500.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 1105105600491 in words is "one trillion, one hundred five billion, one hundred five million, six hundred thousand, four hundred ninety-one".