18101166406 has 8 divisors (see below), whose sum is σ = 27314335440. Its totient is φ = 8996387928.

The previous prime is 18101166397. The next prime is 18101166439. The reversal of 18101166406 is 60466110181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 27097221 + ... + 27097888.

It is an arithmetic number, because the mean of its divisors is an integer number (3414291930).

Almost surely, 2^18101166406 is an apocalyptic number.

18101166406 is a deficient number, since it is larger than the sum of its proper divisors (9213169034).

18101166406 is a wasteful number, since it uses less digits than its factorization.

18101166406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54195278.

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 18101166406 its reverse (60466110181), we get a palindrome (78567276587).

The spelling of 18101166406 in words is "eighteen billion, one hundred one million, one hundred sixty-six thousand, four hundred six".