1668226153 has 32 divisors (see below), whose sum is σ = 1888911360. Its totient is φ = 1472763600.

The previous prime is 1668226127. The next prime is 1668226199. The reversal of 1668226153 is 3516228661.

It is not a de Polignac number, because 1668226153 - 2⁹ = 1668225641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1668226123) 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, 12001558 + ... + 12001696.

It is an arithmetic number, because the mean of its divisors is an integer number (59028480).

Almost surely, 2^1668226153 is an apocalyptic number.

It is an amenable number.

1668226153 is a deficient number, since it is larger than the sum of its proper divisors (220685207).

1668226153 is a wasteful number, since it uses less digits than its factorization.

1668226153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 348 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 1668226153 is about 40843.9243094980. The cubic root of 1668226153 is about 1186.0007813184. Note that the first 3 decimals are identical.

The spelling of 1668226153 in words is "one billion, six hundred sixty-eight million, two hundred twenty-six thousand, one hundred fifty-three".