11151660989 has 16 divisors (see below), whose sum is σ = 12804692736. Its totient is φ = 9513676800.

The previous prime is 11151660983. The next prime is 11151660997. The reversal of 11151660989 is 98906615111.

It is a cyclic number.

It is not a de Polignac number, because 11151660989 - 2³² = 6856693693 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151660983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3994184 + ... + 3996974.

It is an arithmetic number, because the mean of its divisors is an integer number (800293296).

Almost surely, 2^11151660989 is an apocalyptic number.

It is an amenable number.

11151660989 is a deficient number, since it is larger than the sum of its proper divisors (1653031747).

11151660989 is a wasteful number, since it uses less digits than its factorization.

11151660989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 116640, while the sum is 47.

The spelling of 11151660989 in words is "eleven billion, one hundred fifty-one million, six hundred sixty thousand, nine hundred eighty-nine".