1668100353 has 4 divisors (see below), whose sum is σ = 2224133808. Its totient is φ = 1112066900.

The previous prime is 1668100339. The next prime is 1668100363. The reversal of 1668100353 is 3530018661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1668100353 - 2⁶ = 1668100289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668100363) 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 3 ways as a sum of consecutive naturals, for example, 278016723 + ... + 278016728.

It is an arithmetic number, because the mean of its divisors is an integer number (556033452).

Almost surely, 2^1668100353 is an apocalyptic number.

It is an amenable number.

1668100353 is a deficient number, since it is larger than the sum of its proper divisors (556033455).

1668100353 is an equidigital number, since it uses as much as digits as its factorization.

1668100353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556033454.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1668100353 is about 40842.3842717342. The cubic root of 1668100353 is about 1185.9709686840.

The spelling of 1668100353 in words is "one billion, six hundred sixty-eight million, one hundred thousand, three hundred fifty-three".