11105655556601 has 4 divisors (see below), whose sum is σ = 11120097242100. Its totient is φ = 11091213871104.

The previous prime is 11105655556543. The next prime is 11105655556613. The reversal of 11105655556601 is 10665555650111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1525076803600 + 9580578753001 = 1234940^2 + 3095251^2 .

It is a cyclic number.

It is not a de Polignac number, because 11105655556601 - 2⁶ = 11105655556537 is a prime.

It is a super-2 number, since 2×11105655556601² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11105655556621) 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, 7220841596 + ... + 7220843133.

It is an arithmetic number, because the mean of its divisors is an integer number (2780024310525).

Almost surely, 2^{11105655556601} is an apocalyptic number.

It is an amenable number.

11105655556601 is a deficient number, since it is larger than the sum of its proper divisors (14441685499).

11105655556601 is an equidigital number, since it uses as much as digits as its factorization.

11105655556601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441685498.

The product of its (nonzero) digits is 675000, while the sum is 47.

It can be divided in two parts, 11 and 105655556601, that multiplied together give a palindrome (1162211122611).

The spelling of 11105655556601 in words is "eleven trillion, one hundred five billion, six hundred fifty-five million, five hundred fifty-six thousand, six hundred one".