16168408131 has 32 divisors (see below), whose sum is σ = 23153518080. Its totient is φ = 10005465600.

The previous prime is 16168408129. The next prime is 16168408159. The reversal of 16168408131 is 13180486161.

16168408131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16168408131 - 2¹ = 16168408129 is a prime.

It is a super-2 number, since 2×16168408131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16168408131.

It is not an unprimeable number, because it can be changed into a prime (16168408121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905611 + ... + 923291.

It is an arithmetic number, because the mean of its divisors is an integer number (723547440).

Almost surely, 2^16168408131 is an apocalyptic number.

16168408131 is a deficient number, since it is larger than the sum of its proper divisors (6985109949).

16168408131 is a wasteful number, since it uses less digits than its factorization.

16168408131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18027.

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 16168408131 in words is "sixteen billion, one hundred sixty-eight million, four hundred eight thousand, one hundred thirty-one".