11660031144 has 24 divisors (see below), whose sum is σ = 31579251210. Its totient is φ = 3886677024.

The previous prime is 11660031133. The next prime is 11660031151. The reversal of 11660031144 is 44113006611.

11660031144 is a `hidden beast` number, since 1 + 1 + 6 + 600 + 3 + 11 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11376782244 + 283248900 = 106662^2 + 16830^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80972367 + ... + 80972510.

Almost surely, 2^11660031144 is an apocalyptic number.

It is an amenable number.

11660031144 is an abundant number, since it is smaller than the sum of its proper divisors (19919220066).

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

11660031144 is a wasteful number, since it uses less digits than its factorization.

11660031144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161944889 (or 161944882 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 11660031144 its reverse (44113006611), we get a palindrome (55773037755).

The spelling of 11660031144 in words is "eleven billion, six hundred sixty million, thirty-one thousand, one hundred forty-four".