168236480497 has 2 divisors, whose sum is σ = 168236480498. Its totient is φ = 168236480496.

The previous prime is 168236480479. The next prime is 168236480543. The reversal of 168236480497 is 794084632861.

It is a happy number.

Together with previous prime (168236480479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166789743201 + 1446737296 = 408399^2 + 38036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168236480497 is a prime.

It is a super-2 number, since 2×168236480497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168236480297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84118240248 + 84118240249.

It is an arithmetic number, because the mean of its divisors is an integer number (84118240249).

Almost surely, 2^168236480497 is an apocalyptic number.

It is an amenable number.

168236480497 is a deficient number, since it is larger than the sum of its proper divisors (1).

168236480497 is an equidigital number, since it uses as much as digits as its factorization.

168236480497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 168236480497 in words is "one hundred sixty-eight billion, two hundred thirty-six million, four hundred eighty thousand, four hundred ninety-seven".