18166244935 has 8 divisors (see below), whose sum is σ = 21858895296. Its totient is φ = 14493395040.

The previous prime is 18166244891. The next prime is 18166244969. The reversal of 18166244935 is 53944266181.

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

It is not a de Polignac number, because 18166244935 - 2¹³ = 18166236743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4948096 + ... + 4951765.

It is an arithmetic number, because the mean of its divisors is an integer number (2732361912).

Almost surely, 2^18166244935 is an apocalyptic number.

18166244935 is a deficient number, since it is larger than the sum of its proper divisors (3692650361).

18166244935 is an equidigital number, since it uses as much as digits as its factorization.

18166244935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9900233.

The product of its digits is 1244160, while the sum is 49.

The spelling of 18166244935 in words is "eighteen billion, one hundred sixty-six million, two hundred forty-four thousand, nine hundred thirty-five".