16213171619 has 2 divisors, whose sum is σ = 16213171620. Its totient is φ = 16213171618.

The previous prime is 16213171577. The next prime is 16213171627. The reversal of 16213171619 is 91617131261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16213171619 - 2⁸ = 16213171363 is a prime.

It is a super-2 number, since 2×16213171619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16213171669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8106585809 + 8106585810.

It is an arithmetic number, because the mean of its divisors is an integer number (8106585810).

Almost surely, 2^16213171619 is an apocalyptic number.

16213171619 is a deficient number, since it is larger than the sum of its proper divisors (1).

16213171619 is an equidigital number, since it uses as much as digits as its factorization.

16213171619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 38.

The spelling of 16213171619 in words is "sixteen billion, two hundred thirteen million, one hundred seventy-one thousand, six hundred nineteen".