11344431660 has 24 divisors (see below), whose sum is σ = 31764408816. Its totient is φ = 3025181760.

The previous prime is 11344431643. The next prime is 11344431691. The reversal of 11344431660 is 6613444311.

It is a super-2 number, since 2×11344431660² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94536871 + ... + 94536990.

It is an arithmetic number, because the mean of its divisors is an integer number (1323517034).

Almost surely, 2^11344431660 is an apocalyptic number.

11344431660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11344431660 is an abundant number, since it is smaller than the sum of its proper divisors (20419977156).

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

11344431660 is a wasteful number, since it uses less digits than its factorization.

11344431660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189073873 (or 189073871 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 11344431660 its reverse (6613444311), we get a palindrome (17957875971).

The spelling of 11344431660 in words is "eleven billion, three hundred forty-four million, four hundred thirty-one thousand, six hundred sixty".