11126551005 has 12 divisors (see below), whose sum is σ = 19286021820. Its totient is φ = 5934160512.

The previous prime is 11126550991. The next prime is 11126551019. The reversal of 11126551005 is 50015562111.

11126551005 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 655 + 1 + 0 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (11126550991) and next prime (11126551019).

It can be written as a sum of positive squares in 2 ways, for example, as 3897130329 + 7229420676 = 62427^2 + 85026^2 .

It is not a de Polignac number, because 11126551005 - 2⁹ = 11126550493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11126551005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123628300 + ... + 123628389.

It is an arithmetic number, because the mean of its divisors is an integer number (1607168485).

Almost surely, 2^11126551005 is an apocalyptic number.

11126551005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11126551005 is a deficient number, since it is larger than the sum of its proper divisors (8159470815).

11126551005 is a wasteful number, since it uses less digits than its factorization.

11126551005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247256700 (or 247256697 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 11126551005 in words is "eleven billion, one hundred twenty-six million, five hundred fifty-one thousand, five".