16240412687 has 2 divisors, whose sum is σ = 16240412688. Its totient is φ = 16240412686.

The previous prime is 16240412651. The next prime is 16240412743. The reversal of 16240412687 is 78621404261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16240412687 - 2¹⁸ = 16240150543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16240462687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8120206343 + 8120206344.

It is an arithmetic number, because the mean of its divisors is an integer number (8120206344).

Almost surely, 2^16240412687 is an apocalyptic number.

16240412687 is a deficient number, since it is larger than the sum of its proper divisors (1).

16240412687 is an equidigital number, since it uses as much as digits as its factorization.

16240412687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 16240412687 in words is "sixteen billion, two hundred forty million, four hundred twelve thousand, six hundred eighty-seven".