16247530409977 has 2 divisors, whose sum is σ = 16247530409978. Its totient is φ = 16247530409976.

The previous prime is 16247530409953. The next prime is 16247530410053. The reversal of 16247530409977 is 77990403574261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8729684796816 + 7517845613161 = 2954604^2 + 2741869^2 .

It is a cyclic number.

It is not a de Polignac number, because 16247530409977 - 2⁷ = 16247530409849 is a prime.

It is a super-2 number, since 2×16247530409977² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16247530409917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8123765204988 + 8123765204989.

It is an arithmetic number, because the mean of its divisors is an integer number (8123765204989).

Almost surely, 2^{16247530409977} is an apocalyptic number.

It is an amenable number.

16247530409977 is a deficient number, since it is larger than the sum of its proper divisors (1).

16247530409977 is an equidigital number, since it uses as much as digits as its factorization.

16247530409977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80015040, while the sum is 64.

The spelling of 16247530409977 in words is "sixteen trillion, two hundred forty-seven billion, five hundred thirty million, four hundred nine thousand, nine hundred seventy-seven".