11150668217 has 4 divisors (see below), whose sum is σ = 12008411940. Its totient is φ = 10292924496.

The previous prime is 11150668213. The next prime is 11150668297. The reversal of 11150668217 is 71286605111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2715347881 + 8435320336 = 52109^2 + 91844^2 .

It is a cyclic number.

It is not a de Polignac number, because 11150668217 - 2² = 11150668213 is a prime.

It is a super-2 number, since 2×11150668217² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11150668213) 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, 428871842 + ... + 428871867.

It is an arithmetic number, because the mean of its divisors is an integer number (3002102985).

Almost surely, 2^11150668217 is an apocalyptic number.

It is an amenable number.

11150668217 is a deficient number, since it is larger than the sum of its proper divisors (857743723).

11150668217 is an equidigital number, since it uses as much as digits as its factorization.

11150668217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857743722.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 11150668217 in words is "eleven billion, one hundred fifty million, six hundred sixty-eight thousand, two hundred seventeen".