1668426001 has 8 divisors (see below), whose sum is σ = 1820800800. Its totient is φ = 1516167840.

The previous prime is 1668425981. The next prime is 1668426047. The reversal of 1668426001 is 1006248661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1668426001 - 2⁷ = 1668425873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1668426401) 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, 2230 + ... + 57808.

It is an arithmetic number, because the mean of its divisors is an integer number (227600100).

Almost surely, 2^1668426001 is an apocalyptic number.

1668426001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1668426001 is a deficient number, since it is larger than the sum of its proper divisors (152374799).

1668426001 is a wasteful number, since it uses less digits than its factorization.

1668426001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58319.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1668426001 is about 40846.3707200530. The cubic root of 1668426001 is about 1186.0481390901.

The spelling of 1668426001 in words is "one billion, six hundred sixty-eight million, four hundred twenty-six thousand, one".