667210288273 has 2 divisors, whose sum is σ = 667210288274. Its totient is φ = 667210288272.

The previous prime is 667210288219. The next prime is 667210288313. The reversal of 667210288273 is 372882012766.

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., 626902899984 + 40307388289 = 791772^2 + 200767^2 .

It is a cyclic number.

It is not a de Polignac number, because 667210288273 - 2⁹ = 667210287761 is a prime.

It is a super-2 number, since 2×667210288273² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 667210288273.

It is not a weakly prime, because it can be changed into another prime (667210288573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333605144136 + 333605144137.

It is an arithmetic number, because the mean of its divisors is an integer number (333605144137).

Almost surely, 2^667210288273 is an apocalyptic number.

It is an amenable number.

667210288273 is a deficient number, since it is larger than the sum of its proper divisors (1).

667210288273 is an equidigital number, since it uses as much as digits as its factorization.

667210288273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 667210288273 in words is "six hundred sixty-seven billion, two hundred ten million, two hundred eighty-eight thousand, two hundred seventy-three".