23011180166 has 32 divisors (see below), whose sum is σ = 38190458880. Its totient is φ = 10332241056.

The previous prime is 23011180151. The next prime is 23011180207. The reversal of 23011180166 is 66108111032.

It is a super-4 number, since 4×23011180166⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 15 ways as a sum of consecutive naturals, for example, 147695 + ... + 260453.

It is an arithmetic number, because the mean of its divisors is an integer number (1193451840).

Almost surely, 2^23011180166 is an apocalyptic number.

23011180166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23011180166 is a deficient number, since it is larger than the sum of its proper divisors (15179278714).

23011180166 is a wasteful number, since it uses less digits than its factorization.

23011180166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112988.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 23011180166 its reverse (66108111032), we get a palindrome (89119291198).

The spelling of 23011180166 in words is "twenty-three billion, eleven million, one hundred eighty thousand, one hundred sixty-six".