16213364196787 has 2 divisors, whose sum is σ = 16213364196788. Its totient is φ = 16213364196786.

The previous prime is 16213364196763. The next prime is 16213364196871. The reversal of 16213364196787 is 78769146331261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16213364196787 is a prime.

It is a super-2 number, since 2×16213364196787² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16213364193787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8106682098393 + 8106682098394.

It is an arithmetic number, because the mean of its divisors is an integer number (8106682098394).

Almost surely, 2^{16213364196787} is an apocalyptic number.

16213364196787 is a deficient number, since it is larger than the sum of its proper divisors (1).

16213364196787 is an equidigital number, since it uses as much as digits as its factorization.

16213364196787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54867456, while the sum is 64.

The spelling of 16213364196787 in words is "sixteen trillion, two hundred thirteen billion, three hundred sixty-four million, one hundred ninety-six thousand, seven hundred eighty-seven".