11660661075 has 72 divisors (see below), whose sum is σ = 22455318720. Its totient is φ = 5323752000.

The previous prime is 11660661053. The next prime is 11660661091. The reversal of 11660661075 is 57016606611.

11660661075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11660661075 - 2¹⁵ = 11660628307 is a prime.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 3860916 + ... + 3863934.

Almost surely, 2^11660661075 is an apocalyptic number.

11660661075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11660661075 is a deficient number, since it is larger than the sum of its proper divisors (10794657645).

11660661075 is a wasteful number, since it uses less digits than its factorization.

11660661075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 11660661075 in words is "eleven billion, six hundred sixty million, six hundred sixty-one thousand, seventy-five".