180553536493 has 16 divisors (see below), whose sum is σ = 203800017600. Its totient is φ = 158448062080.

The previous prime is 180553536487. The next prime is 180553536497. The reversal of 180553536493 is 394635355081.

180553536493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-180553536493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 180553536493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180553536497) 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 15 ways as a sum of consecutive naturals, for example, 1628418 + ... + 1735756.

It is an arithmetic number, because the mean of its divisors is an integer number (12737501100).

Almost surely, 2^180553536493 is an apocalyptic number.

It is an amenable number.

180553536493 is a deficient number, since it is larger than the sum of its proper divisors (23246481107).

180553536493 is a wasteful number, since it uses less digits than its factorization.

180553536493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112652.

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 180553536493 in words is "one hundred eighty billion, five hundred fifty-three million, five hundred thirty-six thousand, four hundred ninety-three".