3666143439 has 24 divisors (see below), whose sum is σ = 6134958752. Its totient is φ = 2066238720.

The previous prime is 3666143389. The next prime is 3666143477. The reversal of 3666143439 is 9343416663.

It is not a de Polignac number, because 3666143439 - 2⁷ = 3666143311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3666143394 and 3666143403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666143479) 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 23 ways as a sum of consecutive naturals, for example, 393982 + ... + 403179.

Almost surely, 2^3666143439 is an apocalyptic number.

3666143439 is a deficient number, since it is larger than the sum of its proper divisors (2468815313).

3666143439 is a wasteful number, since it uses less digits than its factorization.

3666143439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797247 (or 797244 counting only the distinct ones).

The product of its digits is 839808, while the sum is 45.

The square root of 3666143439 is about 60548.6865175455. The cubic root of 3666143439 is about 1541.9483182020.

The spelling of 3666143439 in words is "three billion, six hundred sixty-six million, one hundred forty-three thousand, four hundred thirty-nine".