11557710227 has 4 divisors (see below), whose sum is σ = 13208811696. Its totient is φ = 9906608760.

The previous prime is 11557710209. The next prime is 11557710247. The reversal of 11557710227 is 72201775511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72201775511 = 102607 ⋅703673.

It is a cyclic number.

It is not a de Polignac number, because 11557710227 - 2³² = 7262742931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11557710247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825550724 + ... + 825550737.

It is an arithmetic number, because the mean of its divisors is an integer number (3302202924).

Almost surely, 2^11557710227 is an apocalyptic number.

11557710227 is a deficient number, since it is larger than the sum of its proper divisors (1651101469).

11557710227 is an equidigital number, since it uses as much as digits as its factorization.

11557710227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651101468.

The product of its (nonzero) digits is 34300, while the sum is 38.

The spelling of 11557710227 in words is "eleven billion, five hundred fifty-seven million, seven hundred ten thousand, two hundred twenty-seven".