18406175416 has 16 divisors (see below), whose sum is σ = 35701633800. Its totient is φ = 8885739744.

The previous prime is 18406175407. The next prime is 18406175423. The reversal of 18406175416 is 61457160481.

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, 39668250 + ... + 39668713.

Almost surely, 2^18406175416 is an apocalyptic number.

It is an amenable number.

18406175416 is a deficient number, since it is larger than the sum of its proper divisors (17295458384).

18406175416 is a wasteful number, since it uses less digits than its factorization.

18406175416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79336998 (or 79336994 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 18406175416 in words is "eighteen billion, four hundred six million, one hundred seventy-five thousand, four hundred sixteen".