11226691664 has 80 divisors (see below), whose sum is σ = 22798540800. Its totient is φ = 5349421440.

The previous prime is 11226691661. The next prime is 11226691673. The reversal of 11226691664 is 46619662211.

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 15 ways as a sum of consecutive naturals, for example, 10560797 + ... + 10561859.

It is an arithmetic number, because the mean of its divisors is an integer number (284981760).

Almost surely, 2^11226691664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11226691664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11399270400).

11226691664 is an abundant number, since it is smaller than the sum of its proper divisors (11571849136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11226691664 is a wasteful number, since it uses less digits than its factorization.

11226691664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 1402 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The spelling of 11226691664 in words is "eleven billion, two hundred twenty-six million, six hundred ninety-one thousand, six hundred sixty-four".