7227216272766 has 64 divisors (see below), whose sum is σ = 16545732364800. Its totient is φ = 2061622142976.

The previous prime is 7227216272761. The next prime is 7227216272791. The reversal of 7227216272766 is 6672726127227.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7227216272761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329562490 + ... + 329584418.

It is an arithmetic number, because the mean of its divisors is an integer number (258527068200).

Almost surely, 2^{7227216272766} is an apocalyptic number.

7227216272766 is an abundant number, since it is smaller than the sum of its proper divisors (9318516092034).

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

7227216272766 is a wasteful number, since it uses less digits than its factorization.

7227216272766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34113.

The product of its digits is 16595712, while the sum is 57.

The spelling of 7227216272766 in words is "seven trillion, two hundred twenty-seven billion, two hundred sixteen million, two hundred seventy-two thousand, seven hundred sixty-six".