6540102165 has 32 divisors (see below), whose sum is σ = 10665216000. Its totient is φ = 3421535040.

The previous prime is 6540102161. The next prime is 6540102169. The reversal of 6540102165 is 5612010456.

It is an interprime number because it is at equal distance from previous prime (6540102161) and next prime (6540102169).

It is not a de Polignac number, because 6540102165 - 2² = 6540102161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540102161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196506 + ... + 227364.

It is an arithmetic number, because the mean of its divisors is an integer number (333288000).

Almost surely, 2^6540102165 is an apocalyptic number.

It is an amenable number.

6540102165 is a deficient number, since it is larger than the sum of its proper divisors (4125113835).

6540102165 is a wasteful number, since it uses less digits than its factorization.

6540102165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31137.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 6540102165 is about 80870.8981340012. The cubic root of 6540102165 is about 1870.0857067489.

The spelling of 6540102165 in words is "six billion, five hundred forty million, one hundred two thousand, one hundred sixty-five".