18052156159 has 8 divisors (see below), whose sum is σ = 18141759360. Its totient is φ = 17962641816.

The previous prime is 18052156141. The next prime is 18052156183. The reversal of 18052156159 is 95165125081.

It is a happy number.

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 18052156159 - 2²³ = 18043767551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052153159) 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, 405372 + ... + 447694.

It is an arithmetic number, because the mean of its divisors is an integer number (2267719920).

Almost surely, 2^18052156159 is an apocalyptic number.

18052156159 is a deficient number, since it is larger than the sum of its proper divisors (89603201).

18052156159 is a wasteful number, since it uses less digits than its factorization.

18052156159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44429.

The product of its (nonzero) digits is 108000, while the sum is 43.

The spelling of 18052156159 in words is "eighteen billion, fifty-two million, one hundred fifty-six thousand, one hundred fifty-nine".