7666665825016 has 32 divisors (see below), whose sum is σ = 16604276255280. Its totient is φ = 3279857036800.

The previous prime is 7666665824969. The next prime is 7666665825023. The reversal of 7666665825016 is 6105285666667.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2562386815 + ... + 2562389806.

Almost surely, 2^{7666665825016} is an apocalyptic number.

It is an amenable number.

7666665825016 is an abundant number, since it is smaller than the sum of its proper divisors (8937610430264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7666665825016 is a wasteful number, since it uses less digits than its factorization.

7666665825016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124776655 (or 5124776651 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 64.

The spelling of 7666665825016 in words is "seven trillion, six hundred sixty-six billion, six hundred sixty-five million, eight hundred twenty-five thousand, sixteen".