2148646168 has 16 divisors (see below), whose sum is σ = 4039074000. Its totient is φ = 1071559776.

The previous prime is 2148646153. The next prime is 2148646169. The reversal of 2148646168 is 8616468412.

It is a super-2 number, since 2×2148646168² = 9233360710522168448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148646169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342108 + ... + 348331.

It is an arithmetic number, because the mean of its divisors is an integer number (252442125).

Almost surely, 2^2148646168 is an apocalyptic number.

It is an amenable number.

2148646168 is a deficient number, since it is larger than the sum of its proper divisors (1890427832).

2148646168 is a wasteful number, since it uses less digits than its factorization.

2148646168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690834 (or 690830 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 2148646168 is about 46353.4914326850. The cubic root of 2148646168 is about 1290.3919182557.

The spelling of 2148646168 in words is "two billion, one hundred forty-eight million, six hundred forty-six thousand, one hundred sixty-eight".