11611621105 has 16 divisors (see below), whose sum is σ = 15927448320. Its totient is φ = 7960784832.

The previous prime is 11611621079. The next prime is 11611621121. The reversal of 11611621105 is 50112611611.

11611621105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11611621105 - 2¹¹ = 11611619057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11611621105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182631 + ... + 237859.

It is an arithmetic number, because the mean of its divisors is an integer number (995465520).

Almost surely, 2^11611621105 is an apocalyptic number.

It is an amenable number.

11611621105 is a deficient number, since it is larger than the sum of its proper divisors (4315827215).

11611621105 is an equidigital number, since it uses as much as digits as its factorization.

11611621105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61248.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 11611621105 in words is "eleven billion, six hundred eleven million, six hundred twenty-one thousand, one hundred five".