7166565616 has 80 divisors (see below), whose sum is σ = 17243023360. Its totient is φ = 2815845120.

The previous prime is 7166565587. The next prime is 7166565617. The reversal of 7166565616 is 6165656617.

It is a self number, because there is not a number n which added to its sum of digits gives 7166565616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166565617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11650 + ... + 120286.

It is an arithmetic number, because the mean of its divisors is an integer number (215537792).

Almost surely, 2^7166565616 is an apocalyptic number.

7166565616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7166565616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8621511680).

7166565616 is an abundant number, since it is smaller than the sum of its proper divisors (10076457744).

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

7166565616 is a wasteful number, since it uses less digits than its factorization.

7166565616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108702 (or 108696 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The square root of 7166565616 is about 84655.5704959809. The cubic root of 7166565616 is about 1927.9851915439.

The spelling of 7166565616 in words is "seven billion, one hundred sixty-six million, five hundred sixty-five thousand, six hundred sixteen".