6515211117 has 8 divisors (see below), whose sum is σ = 8697689280. Its totient is φ = 4338103520.

The previous prime is 6515211107. The next prime is 6515211139. The reversal of 6515211117 is 7111125156.

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

It is a cyclic number.

It is not a de Polignac number, because 6515211117 - 2¹² = 6515207021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6515211107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339809 + ... + 1344662.

It is an arithmetic number, because the mean of its divisors is an integer number (1087211160).

Almost surely, 2^6515211117 is an apocalyptic number.

It is an amenable number.

6515211117 is a deficient number, since it is larger than the sum of its proper divisors (2182478163).

6515211117 is a wasteful number, since it uses less digits than its factorization.

6515211117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685283.

The product of its digits is 2100, while the sum is 30.

The square root of 6515211117 is about 80716.8577002351. The cubic root of 6515211117 is about 1867.7102305401.

The spelling of 6515211117 in words is "six billion, five hundred fifteen million, two hundred eleven thousand, one hundred seventeen".