18032257151 has 4 divisors (see below), whose sum is σ = 18372488472. Its totient is φ = 17692025832.

The previous prime is 18032257129. The next prime is 18032257183. The reversal of 18032257151 is 15175223081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18032257151 - 2¹⁴ = 18032240767 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 (18032257651) 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 3 ways as a sum of consecutive naturals, for example, 170115581 + ... + 170115686.

It is an arithmetic number, because the mean of its divisors is an integer number (4593122118).

Almost surely, 2^18032257151 is an apocalyptic number.

18032257151 is a deficient number, since it is larger than the sum of its proper divisors (340231321).

18032257151 is an equidigital number, since it uses as much as digits as its factorization.

18032257151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340231320.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 18032257151 in words is "eighteen billion, thirty-two million, two hundred fifty-seven thousand, one hundred fifty-one".