1668261224 has 32 divisors (see below), whose sum is σ = 3586377600. Its totient is φ = 712662720.

The previous prime is 1668261211. The next prime is 1668261247. The reversal of 1668261224 is 4221628661.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30479 + ... + 65310.

It is an arithmetic number, because the mean of its divisors is an integer number (112074300).

Almost surely, 2^1668261224 is an apocalyptic number.

1668261224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1668261224 is an abundant number, since it is smaller than the sum of its proper divisors (1918116376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1668261224 is a wasteful number, since it uses less digits than its factorization.

1668261224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96113 (or 96109 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 1668261224 is about 40844.3536367023. The cubic root of 1668261224 is about 1186.0090923302.

Adding to 1668261224 its reverse (4221628661), we get a palindrome (5889889885).

The spelling of 1668261224 in words is "one billion, six hundred sixty-eight million, two hundred sixty-one thousand, two hundred twenty-four".