1001668508427 has 16 divisors (see below), whose sum is σ = 1342796055552. Its totient is φ = 664165925280.

The previous prime is 1001668508419. The next prime is 1001668508429. The reversal of 1001668508427 is 7248058661001.

It is not a de Polignac number, because 1001668508427 - 2³ = 1001668508419 is a prime.

It is a super-4 number, since 4×1001668508427⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001668508429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67248 + ... + 1416989.

It is an arithmetic number, because the mean of its divisors is an integer number (83924753472).

Almost surely, 2^{1001668508427} is an apocalyptic number.

1001668508427 is a deficient number, since it is larger than the sum of its proper divisors (341127547125).

1001668508427 is a wasteful number, since it uses less digits than its factorization.

1001668508427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485458.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 1001668508427 in words is "one trillion, one billion, six hundred sixty-eight million, five hundred eight thousand, four hundred twenty-seven".