11205650775 has 24 divisors (see below), whose sum is σ = 20210920704. Its totient is φ = 5433042400.

The previous prime is 11205650741. The next prime is 11205650791. The reversal of 11205650775 is 57705650211.

It is not a de Polignac number, because 11205650775 - 2¹⁵ = 11205618007 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 6790479 + ... + 6792128.

It is an arithmetic number, because the mean of its divisors is an integer number (842121696).

Almost surely, 2^11205650775 is an apocalyptic number.

11205650775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11205650775 is a deficient number, since it is larger than the sum of its proper divisors (9005269929).

11205650775 is a wasteful number, since it uses less digits than its factorization.

11205650775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582631 (or 13582626 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 11205650775 in words is "eleven billion, two hundred five million, six hundred fifty thousand, seven hundred seventy-five".