18166707753 has 8 divisors (see below), whose sum is σ = 24813064416. Its totient is φ = 11815744800.

The previous prime is 18166707743. The next prime is 18166707821. The reversal of 18166707753 is 35770766181.

It is a happy number.

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

It is not a de Polignac number, because 18166707753 - 2¹⁰ = 18166706729 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18166707696 and 18166707705.

It is not an unprimeable number, because it can be changed into a prime (18166707743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73848283 + ... + 73848528.

It is an arithmetic number, because the mean of its divisors is an integer number (3101633052).

Almost surely, 2^18166707753 is an apocalyptic number.

It is an amenable number.

18166707753 is a deficient number, since it is larger than the sum of its proper divisors (6646356663).

18166707753 is a wasteful number, since it uses less digits than its factorization.

18166707753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147696855.

The product of its (nonzero) digits is 1481760, while the sum is 51.

The spelling of 18166707753 in words is "eighteen billion, one hundred sixty-six million, seven hundred seven thousand, seven hundred fifty-three".