11144156405 has 8 divisors (see below), whose sum is σ = 13376536152. Its totient is φ = 8912959488.

The previous prime is 11144156383. The next prime is 11144156437. The reversal of 11144156405 is 50465144111.

It can be written as a sum of positive squares in 4 ways, for example, as 85951441 + 11058204964 = 9271^2 + 105158^2 .

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 11144156405 - 2⁶ = 11144156341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274844 + ... + 312773.

It is an arithmetic number, because the mean of its divisors is an integer number (1672067019).

Almost surely, 2^11144156405 is an apocalyptic number.

It is an amenable number.

11144156405 is a deficient number, since it is larger than the sum of its proper divisors (2232379747).

11144156405 is an equidigital number, since it uses as much as digits as its factorization.

11144156405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591415.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 11144156405 in words is "eleven billion, one hundred forty-four million, one hundred fifty-six thousand, four hundred five".