16318719171 has 12 divisors (see below), whose sum is σ = 24119657848. Its totient is φ = 10626142464.

The previous prime is 16318719119. The next prime is 16318719217. The reversal of 16318719171 is 17191781361.

It is a happy number.

16318719171 is a `hidden beast` number, since 1 + 631 + 8 + 7 + 1 + 9 + 1 + 7 + 1 = 666.

It is not a de Polignac number, because 16318719171 - 2³¹ = 14171235523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16318769171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21083230 + ... + 21084003.

Almost surely, 2^16318719171 is an apocalyptic number.

16318719171 is a deficient number, since it is larger than the sum of its proper divisors (7800938677).

16318719171 is a wasteful number, since it uses less digits than its factorization.

16318719171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42167282 (or 42167279 counting only the distinct ones).

The product of its digits is 63504, while the sum is 45.

The spelling of 16318719171 in words is "sixteen billion, three hundred eighteen million, seven hundred nineteen thousand, one hundred seventy-one".