16945049101823 has 2 divisors, whose sum is σ = 16945049101824. Its totient is φ = 16945049101822.

The previous prime is 16945049101807. The next prime is 16945049101847. The reversal of 16945049101823 is 32810194054961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16945049101823 - 2⁴ = 16945049101807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16945049101223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472524550911 + 8472524550912.

It is an arithmetic number, because the mean of its divisors is an integer number (8472524550912).

Almost surely, 2^{16945049101823} is an apocalyptic number.

16945049101823 is a deficient number, since it is larger than the sum of its proper divisors (1).

16945049101823 is an equidigital number, since it uses as much as digits as its factorization.

16945049101823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 16945049101823 in words is "sixteen trillion, nine hundred forty-five billion, forty-nine million, one hundred one thousand, eight hundred twenty-three".