6613109165 has 8 divisors (see below), whose sum is σ = 8546171928. Its totient is φ = 4883526720.

The previous prime is 6613109159. The next prime is 6613109171. The reversal of 6613109165 is 5619013166.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6613109159) and next prime (6613109171).

It can be written as a sum of positive squares in 4 ways, for example, as 1312395529 + 5300713636 = 36227^2 + 72806^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6613109165 - 2¹⁰ = 6613108141 is a prime.

It is a super-3 number, since 3×6613109165³ (a number of 30 digits) contains 333 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 7 ways as a sum of consecutive naturals, for example, 50870006 + ... + 50870135.

It is an arithmetic number, because the mean of its divisors is an integer number (1068271491).

Almost surely, 2^6613109165 is an apocalyptic number.

6613109165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6613109165 is a deficient number, since it is larger than the sum of its proper divisors (1933062763).

6613109165 is a wasteful number, since it uses less digits than its factorization.

6613109165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101740159.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 6613109165 is about 81321.0253563001. The cubic root of 6613109165 is about 1877.0185469662.

The spelling of 6613109165 in words is "six billion, six hundred thirteen million, one hundred nine thousand, one hundred sixty-five".