6517211612 has 6 divisors (see below), whose sum is σ = 11405120328. Its totient is φ = 3258605804.

The previous prime is 6517211609. The next prime is 6517211639. The reversal of 6517211612 is 2161127156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814651448 + ... + 814651455.

It is an arithmetic number, because the mean of its divisors is an integer number (1900853388).

Almost surely, 2^6517211612 is an apocalyptic number.

It is an amenable number.

6517211612 is a deficient number, since it is larger than the sum of its proper divisors (4887908716).

6517211612 is a wasteful number, since it uses less digits than its factorization.

6517211612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629302907 (or 1629302905 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 6517211612 is about 80729.2488011625. The cubic root of 6517211612 is about 1867.9013710656.

Adding to 6517211612 its reverse (2161127156), we get a palindrome (8678338768).

The spelling of 6517211612 in words is "six billion, five hundred seventeen million, two hundred eleven thousand, six hundred twelve".