8118520216 has 32 divisors (see below), whose sum is σ = 15336324000. Its totient is φ = 4028935680.

The previous prime is 8118520213. The next prime is 8118520229. The reversal of 8118520216 is 6120258118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8118520213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664176 + ... + 676288.

It is an arithmetic number, because the mean of its divisors is an integer number (479260125).

Almost surely, 2^8118520216 is an apocalyptic number.

It is an amenable number.

8118520216 is a deficient number, since it is larger than the sum of its proper divisors (7217803784).

8118520216 is a wasteful number, since it uses less digits than its factorization.

8118520216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12739 (or 12735 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 8118520216 is about 90102.8313428607. The cubic root of 8118520216 is about 2009.8283077359.

The spelling of 8118520216 in words is "eight billion, one hundred eighteen million, five hundred twenty thousand, two hundred sixteen".