11101444661 has 8 divisors (see below), whose sum is σ = 11780458560. Its totient is φ = 10438792672.

The previous prime is 11101444657. The next prime is 11101444687. The reversal of 11101444661 is 16644410111.

11101444661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11101444661 - 2² = 11101444657 is a prime.

It is a super-2 number, since 2×11101444661² (a number of 21 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 (11101444631) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4089080 + ... + 4091793.

It is an arithmetic number, because the mean of its divisors is an integer number (1472557320).

Almost surely, 2^11101444661 is an apocalyptic number.

It is an amenable number.

11101444661 is a deficient number, since it is larger than the sum of its proper divisors (679013899).

11101444661 is an equidigital number, since it uses as much as digits as its factorization.

11101444661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180955.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 11101444661 its reverse (16644410111), we get a palindrome (27745854772).

The spelling of 11101444661 in words is "eleven billion, one hundred one million, four hundred forty-four thousand, six hundred sixty-one".