6665674415 has 16 divisors (see below), whose sum is σ = 8487669888. Its totient is φ = 5007991296.

The previous prime is 6665674409. The next prime is 6665674439. The reversal of 6665674415 is 5144765666.

It is a cyclic number.

It is not a de Polignac number, because 6665674415 - 2⁴ = 6665674399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 45332 + ... + 124041.

It is an arithmetic number, because the mean of its divisors is an integer number (530479368).

Almost surely, 2^6665674415 is an apocalyptic number.

6665674415 is a deficient number, since it is larger than the sum of its proper divisors (1821995473).

6665674415 is a wasteful number, since it uses less digits than its factorization.

6665674415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169858.

The product of its digits is 3628800, while the sum is 50.

The square root of 6665674415 is about 81643.5815909616. The cubic root of 6665674415 is about 1881.9786786723.

The spelling of 6665674415 in words is "six billion, six hundred sixty-five million, six hundred seventy-four thousand, four hundred fifteen".