11105556061061 has 16 divisors (see below), whose sum is σ = 13918379655168. Its totient is φ = 8608372810800.

The previous prime is 11105556061043. The next prime is 11105556061133. The reversal of 11105556061061 is 16016065550111.

It is a happy number.

It is not a de Polignac number, because 11105556061061 - 2¹⁰ = 11105556060037 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 (11105556061361) 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 15 ways as a sum of consecutive naturals, for example, 377545505 + ... + 377574918.

It is an arithmetic number, because the mean of its divisors is an integer number (869898728448).

Almost surely, 2^{11105556061061} is an apocalyptic number.

11105556061061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11105556061061 is a deficient number, since it is larger than the sum of its proper divisors (2812823594107).

11105556061061 is a wasteful number, since it uses less digits than its factorization.

11105556061061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755120632.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 11105556061061 in words is "eleven trillion, one hundred five billion, five hundred fifty-six million, sixty-one thousand, sixty-one".