1105106660557 has 4 divisors (see below), whose sum is σ = 1118421198720. Its totient is φ = 1091792122396.

The previous prime is 1105106660461. The next prime is 1105106660561. The reversal of 1105106660557 is 7550666015011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105106660557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105106660597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6657268957 + ... + 6657269122.

It is an arithmetic number, because the mean of its divisors is an integer number (279605299680).

Almost surely, 2^{1105106660557} is an apocalyptic number.

It is an amenable number.

1105106660557 is a deficient number, since it is larger than the sum of its proper divisors (13314538163).

1105106660557 is an equidigital number, since it uses as much as digits as its factorization.

1105106660557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314538162.

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 1105106660557 in words is "one trillion, one hundred five billion, one hundred six million, six hundred sixty thousand, five hundred fifty-seven".