11728349166 has 16 divisors (see below), whose sum is σ = 23458187088. Its totient is φ = 3909201600.

The previous prime is 11728349081. The next prime is 11728349183. The reversal of 11728349166 is 66194382711.

It is a super-2 number, since 2×11728349166² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58356 + ... + 163896.

It is an arithmetic number, because the mean of its divisors is an integer number (1466136693).

Almost surely, 2^11728349166 is an apocalyptic number.

11728349166 is an abundant number, since it is smaller than the sum of its proper divisors (11729837922).

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

11728349166 is a wasteful number, since it uses less digits than its factorization.

11728349166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124067.

The product of its digits is 435456, while the sum is 48.

The spelling of 11728349166 in words is "eleven billion, seven hundred twenty-eight million, three hundred forty-nine thousand, one hundred sixty-six".