11399665770 has 24 divisors (see below), whose sum is σ = 29639131236. Its totient is φ = 3039910848.

The previous prime is 11399665729. The next prime is 11399665777. The reversal of 11399665770 is 7756699311.

It is a happy number.

11399665770 is a `hidden beast` number, since 1 + 1 + 3 + 9 + 9 + 66 + 577 + 0 = 666.

11399665770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10922549121 + 477116649 = 104511^2 + 21843^2 .

It is not an unprimeable number, because it can be changed into a prime (11399665777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63331387 + ... + 63331566.

Almost surely, 2^11399665770 is an apocalyptic number.

11399665770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11399665770 is an abundant number, since it is smaller than the sum of its proper divisors (18239465466).

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

11399665770 is a wasteful number, since it uses less digits than its factorization.

11399665770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126662966 (or 126662963 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 11399665770 in words is "eleven billion, three hundred ninety-nine million, six hundred sixty-five thousand, seven hundred seventy".