18160218457 has 8 divisors (see below), whose sum is σ = 18399024000. Its totient is φ = 17921636304.

The previous prime is 18160218413. The next prime is 18160218463. The reversal of 18160218457 is 75481206181.

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

It is a cyclic number.

It is not a de Polignac number, because 18160218457 - 2¹¹ = 18160216409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18160218497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111063 + ... + 220579.

It is an arithmetic number, because the mean of its divisors is an integer number (2299878000).

Almost surely, 2^18160218457 is an apocalyptic number.

It is an amenable number.

18160218457 is a deficient number, since it is larger than the sum of its proper divisors (238805543).

18160218457 is a wasteful number, since it uses less digits than its factorization.

18160218457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111695.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 18160218457 in words is "eighteen billion, one hundred sixty million, two hundred eighteen thousand, four hundred fifty-seven".