16294518503423 has 2 divisors, whose sum is σ = 16294518503424. Its totient is φ = 16294518503422.

The previous prime is 16294518503401. The next prime is 16294518503587. The reversal of 16294518503423 is 32430581549261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16294518503423 - 2³² = 16290223536127 is a prime.

It is a super-2 number, since 2×16294518503423² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16294518503023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8147259251711 + 8147259251712.

It is an arithmetic number, because the mean of its divisors is an integer number (8147259251712).

Almost surely, 2^{16294518503423} is an apocalyptic number.

16294518503423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16294518503423 is an equidigital number, since it uses as much as digits as its factorization.

16294518503423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 16294518503423 in words is "sixteen trillion, two hundred ninety-four billion, five hundred eighteen million, five hundred three thousand, four hundred twenty-three".