4501660181 has 2 divisors, whose sum is σ = 4501660182. Its totient is φ = 4501660180.

The previous prime is 4501660171. The next prime is 4501660187. The reversal of 4501660181 is 1810661054.

4501660181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3741279556 + 760380625 = 61166^2 + 27575^2 .

It is a cyclic number.

It is not a de Polignac number, because 4501660181 - 2¹⁸ = 4501398037 is a prime.

It is a super-2 number, since 2×4501660181² = 40529888770401905522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4501660187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2250830090 + 2250830091.

It is an arithmetic number, because the mean of its divisors is an integer number (2250830091).

Almost surely, 2^4501660181 is an apocalyptic number.

It is an amenable number.

4501660181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4501660181 is an equidigital number, since it uses as much as digits as its factorization.

4501660181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 4501660181 is about 67094.4124424680. The cubic root of 4501660181 is about 1651.1666289987.

The spelling of 4501660181 in words is "four billion, five hundred one million, six hundred sixty thousand, one hundred eighty-one".