1061105605055 has 8 divisors (see below), whose sum is σ = 1273340531232. Its totient is φ = 848875280608.

The previous prime is 1061105605051. The next prime is 1061105605117. The reversal of 1061105605055 is 5505065011601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1061105605055 - 2² = 1061105605051 is a prime.

It is a super-2 number, since 2×1061105605055² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061105605051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620984 + ... + 1583613.

It is an arithmetic number, because the mean of its divisors is an integer number (159167566404).

Almost surely, 2^{1061105605055} is an apocalyptic number.

1061105605055 is a deficient number, since it is larger than the sum of its proper divisors (212234926177).

1061105605055 is an equidigital number, since it uses as much as digits as its factorization.

1061105605055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300865.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 1061105605055 in words is "one trillion, sixty-one billion, one hundred five million, six hundred five thousand, fifty-five".