8212516611 has 16 divisors (see below), whose sum is σ = 11867450784. Its totient is φ = 5021662464.

The previous prime is 8212516591. The next prime is 8212516657. The reversal of 8212516611 is 1166152128.

It is not a de Polignac number, because 8212516611 - 2⁷ = 8212516483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8212516211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664506 + ... + 676751.

It is an arithmetic number, because the mean of its divisors is an integer number (741715674).

Almost surely, 2^8212516611 is an apocalyptic number.

8212516611 is a deficient number, since it is larger than the sum of its proper divisors (3654934173).

8212516611 is a wasteful number, since it uses less digits than its factorization.

8212516611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341430.

The product of its digits is 5760, while the sum is 33.

The square root of 8212516611 is about 90622.9364509891. The cubic root of 8212516611 is about 2017.5551746526. Note that the first 3 decimals are identical.

Adding to 8212516611 its reverse (1166152128), we get a palindrome (9378668739).

The spelling of 8212516611 in words is "eight billion, two hundred twelve million, five hundred sixteen thousand, six hundred eleven".