18165234801 has 16 divisors (see below), whose sum is σ = 27689446400. Its totient is φ = 10376725968.

The previous prime is 18165234751. The next prime is 18165234811. The reversal of 18165234801 is 10843256181.

It is not a de Polignac number, because 18165234801 - 2⁷ = 18165234673 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18165234801.

It is not an unprimeable number, because it can be changed into a prime (18165234811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75811 + ... + 205128.

It is an arithmetic number, because the mean of its divisors is an integer number (1730590400).

Almost surely, 2^18165234801 is an apocalyptic number.

It is an amenable number.

18165234801 is a deficient number, since it is larger than the sum of its proper divisors (9524211599).

18165234801 is a wasteful number, since it uses less digits than its factorization.

18165234801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284028.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 18165234801 in words is "eighteen billion, one hundred sixty-five million, two hundred thirty-four thousand, eight hundred one".