180166747223 has 4 divisors (see below), whose sum is σ = 182447339040. Its totient is φ = 177886155408.

The previous prime is 180166747193. The next prime is 180166747237. The reversal of 180166747223 is 322747661081.

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 180166747223 - 2²⁶ = 180099638359 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 (180166747723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140295790 + ... + 1140295947.

It is an arithmetic number, because the mean of its divisors is an integer number (45611834760).

Almost surely, 2^180166747223 is an apocalyptic number.

180166747223 is a deficient number, since it is larger than the sum of its proper divisors (2280591817).

180166747223 is an equidigital number, since it uses as much as digits as its factorization.

180166747223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280591816.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 180166747223 in words is "one hundred eighty billion, one hundred sixty-six million, seven hundred forty-seven thousand, two hundred twenty-three".