16105541553499 has 2 divisors, whose sum is σ = 16105541553500. Its totient is φ = 16105541553498.

The previous prime is 16105541553449. The next prime is 16105541553533. The reversal of 16105541553499 is 99435514550161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16105541553499 - 2⁷ = 16105541553371 is a prime.

It is not a weakly prime, because it can be changed into another prime (16105541553449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8052770776749 + 8052770776750.

It is an arithmetic number, because the mean of its divisors is an integer number (8052770776750).

Almost surely, 2^{16105541553499} is an apocalyptic number.

16105541553499 is a deficient number, since it is larger than the sum of its proper divisors (1).

16105541553499 is an equidigital number, since it uses as much as digits as its factorization.

16105541553499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580000, while the sum is 58.

The spelling of 16105541553499 in words is "sixteen trillion, one hundred five billion, five hundred forty-one million, five hundred fifty-three thousand, four hundred ninety-nine".