7217776606 has 16 divisors (see below), whose sum is σ = 10972962000. Its totient is φ = 3560407488.

The previous prime is 7217776583. The next prime is 7217776607. The reversal of 7217776606 is 6066777127.

It is a self number, because there is not a number n which added to its sum of digits gives 7217776606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7217776607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20256 + ... + 121843.

It is an arithmetic number, because the mean of its divisors is an integer number (685810125).

Almost surely, 2^7217776606 is an apocalyptic number.

7217776606 is a deficient number, since it is larger than the sum of its proper divisors (3755185394).

7217776606 is a wasteful number, since it uses less digits than its factorization.

7217776606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142443.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The square root of 7217776606 is about 84957.4988214696. The cubic root of 7217776606 is about 1932.5666413069.

The spelling of 7217776606 in words is "seven billion, two hundred seventeen million, seven hundred seventy-six thousand, six hundred six".