16400000164 has 24 divisors (see below), whose sum is σ = 31129417368. Its totient is φ = 7529410560.

The previous prime is 16400000159. The next prime is 16400000167. The reversal of 16400000164 is 46100000461.

It can be written as a sum of positive squares in 4 ways, for example, as 2560360000 + 13839640164 = 50600^2 + 117642^2 .

It is not an unprimeable number, because it can be changed into a prime (16400000167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2938389 + ... + 2943964.

It is an arithmetic number, because the mean of its divisors is an integer number (1297059057).

Almost surely, 2^16400000164 is an apocalyptic number.

It is an amenable number.

16400000164 is a deficient number, since it is larger than the sum of its proper divisors (14729417204).

16400000164 is a wasteful number, since it uses less digits than its factorization.

16400000164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882415 (or 5882413 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 16400000164 in words is "sixteen billion, four hundred million, one hundred sixty-four", and thus it is an aban number.