10216565266 has 16 divisors (see below), whose sum is σ = 15993595800. Its totient is φ = 4888484608.

The previous prime is 10216565231. The next prime is 10216565311. The reversal of 10216565266 is 66256561201.

It can be written as a sum of positive squares in 4 ways, for example, as 3761246241 + 6455319025 = 61329^2 + 80345^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772861 + ... + 785968.

Almost surely, 2^10216565266 is an apocalyptic number.

10216565266 is a deficient number, since it is larger than the sum of its proper divisors (5777030534).

10216565266 is a wasteful number, since it uses less digits than its factorization.

10216565266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558973.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 10216565266 in words is "ten billion, two hundred sixteen million, five hundred sixty-five thousand, two hundred sixty-six".