180341690721 has 4 divisors (see below), whose sum is σ = 240455587632. Its totient is φ = 120227793812.

The previous prime is 180341690671. The next prime is 180341690729. The reversal of 180341690721 is 127096143081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 180341690721 - 2¹¹ = 180341688673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (180341690729) 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, 30056948451 + ... + 30056948456.

It is an arithmetic number, because the mean of its divisors is an integer number (60113896908).

Almost surely, 2^180341690721 is an apocalyptic number.

It is an amenable number.

180341690721 is a deficient number, since it is larger than the sum of its proper divisors (60113896911).

180341690721 is an equidigital number, since it uses as much as digits as its factorization.

180341690721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60113896910.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 180341690721 in words is "one hundred eighty billion, three hundred forty-one million, six hundred ninety thousand, seven hundred twenty-one".