16401505512143 has 2 divisors, whose sum is σ = 16401505512144. Its totient is φ = 16401505512142.

The previous prime is 16401505512131. The next prime is 16401505512149. The reversal of 16401505512143 is 34121550510461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16401505512143 - 2¹⁶ = 16401505446607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16401505512097 and 16401505512106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16401505512149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8200752756071 + 8200752756072.

It is an arithmetic number, because the mean of its divisors is an integer number (8200752756072).

Almost surely, 2^{16401505512143} is an apocalyptic number.

16401505512143 is a deficient number, since it is larger than the sum of its proper divisors (1).

16401505512143 is an equidigital number, since it uses as much as digits as its factorization.

16401505512143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 16401505512143 in words is "sixteen trillion, four hundred one billion, five hundred five million, five hundred twelve thousand, one hundred forty-three".