11144555087 has 16 divisors (see below), whose sum is σ = 11913799680. Its totient is φ = 10401736800.

The previous prime is 11144555083. The next prime is 11144555101. The reversal of 11144555087 is 78055544111.

It is a cyclic number.

It is not a de Polignac number, because 11144555087 - 2² = 11144555083 is a prime.

It is a super-2 number, since 2×11144555087² (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 (11144555083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877412 + ... + 890022.

It is an arithmetic number, because the mean of its divisors is an integer number (744612480).

Almost surely, 2^11144555087 is an apocalyptic number.

11144555087 is a deficient number, since it is larger than the sum of its proper divisors (769244593).

11144555087 is a wasteful number, since it uses less digits than its factorization.

11144555087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13654.

The product of its (nonzero) digits is 112000, while the sum is 41.

The spelling of 11144555087 in words is "eleven billion, one hundred forty-four million, five hundred fifty-five thousand, eighty-seven".