11660048901 has 20 divisors (see below), whose sum is σ = 17459719200. Its totient is φ = 7754791176.

The previous prime is 11660048899. The next prime is 11660048921. The reversal of 11660048901 is 10984006611.

It is a happy number.

11660048901 is a `hidden beast` number, since 1 + 1 + 6 + 600 + 48 + 9 + 0 + 1 = 666.

It is not a de Polignac number, because 11660048901 - 2¹ = 11660048899 is a prime.

It is a super-2 number, since 2×11660048901² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660048921) 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 19 ways as a sum of consecutive naturals, for example, 137841 + ... + 205718.

It is an arithmetic number, because the mean of its divisors is an integer number (872985960).

Almost surely, 2^11660048901 is an apocalyptic number.

It is an amenable number.

11660048901 is a deficient number, since it is larger than the sum of its proper divisors (5799670299).

11660048901 is an equidigital number, since it uses as much as digits as its factorization.

11660048901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343990 (or 343981 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 11660048901 in words is "eleven billion, six hundred sixty million, forty-eight thousand, nine hundred one".