11226691663 has 32 divisors (see below), whose sum is σ = 12945033792. Its totient is φ = 9644544000.

The previous prime is 11226691661. The next prime is 11226691673. The reversal of 11226691663 is 36619662211.

It is a cyclic number.

It is not a de Polignac number, because 11226691663 - 2¹ = 11226691661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11226691661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2176095 + ... + 2181247.

It is an arithmetic number, because the mean of its divisors is an integer number (404532306).

Almost surely, 2^11226691663 is an apocalyptic number.

11226691663 is a deficient number, since it is larger than the sum of its proper divisors (1718342129).

11226691663 is a wasteful number, since it uses less digits than its factorization.

11226691663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355.

The product of its digits is 139968, while the sum is 43.

The spelling of 11226691663 in words is "eleven billion, two hundred twenty-six million, six hundred ninety-one thousand, six hundred sixty-three".