12356016493 has 2 divisors, whose sum is σ = 12356016494. Its totient is φ = 12356016492.

The previous prime is 12356016479. The next prime is 12356016539. The reversal of 12356016493 is 39461065321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12206272324 + 149744169 = 110482^2 + 12237^2 .

It is a cyclic number.

It is not a de Polignac number, because 12356016493 - 2²¹ = 12353919341 is a prime.

It is a super-2 number, since 2×12356016493² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12356016403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6178008246 + 6178008247.

It is an arithmetic number, because the mean of its divisors is an integer number (6178008247).

Almost surely, 2^12356016493 is an apocalyptic number.

It is an amenable number.

12356016493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12356016493 is an equidigital number, since it uses as much as digits as its factorization.

12356016493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 12356016493 in words is "twelve billion, three hundred fifty-six million, sixteen thousand, four hundred ninety-three".