11144321464 has 16 divisors (see below), whose sum is σ = 21111022800. Its totient is φ = 5514715392.

The previous prime is 11144321453. The next prime is 11144321477. The reversal of 11144321464 is 46412344111.

It is a super-2 number, since 2×11144321464² (a number of 21 digits) contains 22 as substring.

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, 7179844 + ... + 7181395.

It is an arithmetic number, because the mean of its divisors is an integer number (1319438925).

Almost surely, 2^11144321464 is an apocalyptic number.

It is an amenable number.

11144321464 is a deficient number, since it is larger than the sum of its proper divisors (9966701336).

11144321464 is a wasteful number, since it uses less digits than its factorization.

11144321464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14361342 (or 14361338 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

Adding to 11144321464 its reverse (46412344111), we get a palindrome (57556665575).

The spelling of 11144321464 in words is "eleven billion, one hundred forty-four million, three hundred twenty-one thousand, four hundred sixty-four".