16506146519 has 2 divisors, whose sum is σ = 16506146520. Its totient is φ = 16506146518.

The previous prime is 16506146497. The next prime is 16506146521. The reversal of 16506146519 is 91564160561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16506146519 - 2¹² = 16506142423 is a prime.

It is a super-2 number, since 2×16506146519² (a number of 21 digits) contains 22 as substring.

Together with 16506146521, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16506146519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16506146219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253073259 + 8253073260.

It is an arithmetic number, because the mean of its divisors is an integer number (8253073260).

Almost surely, 2^16506146519 is an apocalyptic number.

16506146519 is a deficient number, since it is larger than the sum of its proper divisors (1).

16506146519 is an equidigital number, since it uses as much as digits as its factorization.

16506146519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 16506146519 in words is "sixteen billion, five hundred six million, one hundred forty-six thousand, five hundred nineteen".