7666165701 has 12 divisors (see below), whose sum is σ = 11483474912. Its totient is φ = 5110776972.

The previous prime is 7666165693. The next prime is 7666165721. The reversal of 7666165701 is 1075616667.

It is not a de Polignac number, because 7666165701 - 2³ = 7666165693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666165721) 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 11 ways as a sum of consecutive naturals, for example, 15773761 + ... + 15774246.

Almost surely, 2^7666165701 is an apocalyptic number.

It is an amenable number.

7666165701 is a deficient number, since it is larger than the sum of its proper divisors (3817309211).

7666165701 is an equidigital number, since it uses as much as digits as its factorization.

7666165701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31548022 (or 31548010 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 7666165701 is about 87556.6428148087. The cubic root of 7666165701 is about 1971.7842837005.

The spelling of 7666165701 in words is "seven billion, six hundred sixty-six million, one hundred sixty-five thousand, seven hundred one".