6696500165 has 4 divisors (see below), whose sum is σ = 8035800204. Its totient is φ = 5357200128.

The previous prime is 6696500159. The next prime is 6696500179. The reversal of 6696500165 is 5610056966.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4248823489 + 2447676676 = 65183^2 + 49474^2 .

It is a cyclic number.

It is not a de Polignac number, because 6696500165 - 2¹⁰ = 6696499141 is a prime.

It is a super-2 number, since 2×6696500165² = 89686228919690054450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669650012 + ... + 669650021.

It is an arithmetic number, because the mean of its divisors is an integer number (2008950051).

Almost surely, 2^6696500165 is an apocalyptic number.

It is an amenable number.

6696500165 is a deficient number, since it is larger than the sum of its proper divisors (1339300039).

6696500165 is a wasteful number, since it uses less digits than its factorization.

6696500165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339300038.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 6696500165 is about 81832.1462812751. The cubic root of 6696500165 is about 1884.8753200350.

The spelling of 6696500165 in words is "six billion, six hundred ninety-six million, five hundred thousand, one hundred sixty-five".