7165445617 has 32 divisors (see below), whose sum is σ = 8599163904. Its totient is φ = 5894553600.

The previous prime is 7165445603. The next prime is 7165445621.

7165445617 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7165445617 - 2³¹ = 5017961969 is a prime.

It is a super-2 number, since 2×7165445617² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7165445627) 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, 906193 + ... + 914065.

It is an arithmetic number, because the mean of its divisors is an integer number (268723872).

Almost surely, 2^7165445617 is an apocalyptic number.

7165445617 is the 53537-th heptagonal number.

It is an amenable number.

7165445617 is a deficient number, since it is larger than the sum of its proper divisors (1433718287).

7165445617 is a wasteful number, since it uses less digits than its factorization.

7165445617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089.

The product of its digits is 705600, while the sum is 46.

The square root of 7165445617 is about 84648.9552032392. The cubic root of 7165445617 is about 1927.8847504075.

The spelling of 7165445617 in words is "seven billion, one hundred sixty-five million, four hundred forty-five thousand, six hundred seventeen".