11266651205 has 4 divisors (see below), whose sum is σ = 13519981452. Its totient is φ = 9013320960.

The previous prime is 11266651181. The next prime is 11266651237. The reversal of 11266651205 is 50215666211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50215666211 = 3517 ⋅14277983.

It can be written as a sum of positive squares in 2 ways, for example, as 2971449121 + 8295202084 = 54511^2 + 91078^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11266651205 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 3 ways as a sum of consecutive naturals, for example, 1126665116 + ... + 1126665125.

It is an arithmetic number, because the mean of its divisors is an integer number (3379995363).

Almost surely, 2^11266651205 is an apocalyptic number.

It is an amenable number.

11266651205 is a deficient number, since it is larger than the sum of its proper divisors (2253330247).

11266651205 is an equidigital number, since it uses as much as digits as its factorization.

11266651205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253330246.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11266651205 in words is "eleven billion, two hundred sixty-six million, six hundred fifty-one thousand, two hundred five".