180664633 has 2 divisors, whose sum is σ = 180664634. Its totient is φ = 180664632.

The previous prime is 180664619. The next prime is 180664637. The reversal of 180664633 is 336466081.

180664633 is digitally balanced in base 2, 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., 172975104 + 7689529 = 13152^2 + 2773^2 .

It is a cyclic number.

It is not a de Polignac number, because 180664633 - 2²¹ = 178567481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180664592 and 180664601.

It is not a weakly prime, because it can be changed into another prime (180664637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90332316 + 90332317.

It is an arithmetic number, because the mean of its divisors is an integer number (90332317).

Almost surely, 2^180664633 is an apocalyptic number.

It is an amenable number.

180664633 is a deficient number, since it is larger than the sum of its proper divisors (1).

180664633 is an equidigital number, since it uses as much as digits as its factorization.

180664633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 180664633 is about 13441.1544519063. The cubic root of 180664633 is about 565.3157010809.

The spelling of 180664633 in words is "one hundred eighty million, six hundred sixty-four thousand, six hundred thirty-three".