180697257233 has 2 divisors, whose sum is σ = 180697257234. Its totient is φ = 180697257232.

The previous prime is 180697257199. The next prime is 180697257241. The reversal of 180697257233 is 332752796081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172098033409 + 8599223824 = 414847^2 + 92732^2 .

It is a cyclic number.

It is not a de Polignac number, because 180697257233 - 2¹⁰ = 180697256209 is a prime.

It is not a weakly prime, because it can be changed into another prime (180697257253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90348628616 + 90348628617.

It is an arithmetic number, because the mean of its divisors is an integer number (90348628617).

Almost surely, 2^180697257233 is an apocalyptic number.

It is an amenable number.

180697257233 is a deficient number, since it is larger than the sum of its proper divisors (1).

180697257233 is an equidigital number, since it uses as much as digits as its factorization.

180697257233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 180697257233 in words is "one hundred eighty billion, six hundred ninety-seven million, two hundred fifty-seven thousand, two hundred thirty-three".