7205216611 has 16 divisors (see below), whose sum is σ = 7464783744. Its totient is φ = 6950248704.

The previous prime is 7205216593. The next prime is 7205216659. The reversal of 7205216611 is 1166125027.

It is a cyclic number.

It is not a de Polignac number, because 7205216611 - 2²⁹ = 6668345699 is a prime.

It is a super-2 number, since 2×7205216611² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7205216111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594291 + ... + 1598803.

It is an arithmetic number, because the mean of its divisors is an integer number (466548984).

Almost surely, 2^7205216611 is an apocalyptic number.

7205216611 is a deficient number, since it is larger than the sum of its proper divisors (259567133).

7205216611 is a wasteful number, since it uses less digits than its factorization.

7205216611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7205216611 is about 84883.5473516511. The cubic root of 7205216611 is about 1931.4450068640.

The spelling of 7205216611 in words is "seven billion, two hundred five million, two hundred sixteen thousand, six hundred eleven".