10518866216 has 8 divisors (see below), whose sum is σ = 19722874170. Its totient is φ = 5259433104.

The previous prime is 10518866213. The next prime is 10518866221. The reversal of 10518866216 is 61266881501.

It can be written as a sum of positive squares in only one way, i.e., 6630844900 + 3888021316 = 81430^2 + 62354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10518866216² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10518866213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657429131 + ... + 657429146.

Almost surely, 2^10518866216 is an apocalyptic number.

It is an amenable number.

10518866216 is a deficient number, since it is larger than the sum of its proper divisors (9204007954).

10518866216 is a wasteful number, since it uses less digits than its factorization.

10518866216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314858283 (or 1314858279 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 10518866216 in words is "ten billion, five hundred eighteen million, eight hundred sixty-six thousand, two hundred sixteen".