16534798017923 has 2 divisors, whose sum is σ = 16534798017924. Its totient is φ = 16534798017922.

The previous prime is 16534798017877. The next prime is 16534798017943. The reversal of 16534798017923 is 32971089743561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16534798017923 - 2¹² = 16534798013827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16534798017923.

It is not a weakly prime, because it can be changed into another prime (16534798017943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8267399008961 + 8267399008962.

It is an arithmetic number, because the mean of its divisors is an integer number (8267399008962).

It is a 1-persistent number, because it is pandigital, but 2⋅16534798017923 = 33069596035846 is not.

Almost surely, 2^{16534798017923} is an apocalyptic number.

16534798017923 is a deficient number, since it is larger than the sum of its proper divisors (1).

16534798017923 is an equidigital number, since it uses as much as digits as its factorization.

16534798017923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 16534798017923 in words is "sixteen trillion, five hundred thirty-four billion, seven hundred ninety-eight million, seventeen thousand, nine hundred twenty-three".