10656651266 has 8 divisors (see below), whose sum is σ = 15991942860. Its totient is φ = 5326003648.

The previous prime is 10656651259. The next prime is 10656651293. The reversal of 10656651266 is 66215665601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9202373041 + 1454278225 = 95929^2 + 38135^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10656651266² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155251 + ... + 1164438.

Almost surely, 2^10656651266 is an apocalyptic number.

10656651266 is a deficient number, since it is larger than the sum of its proper divisors (5335291594).

10656651266 is a wasteful number, since it uses less digits than its factorization.

10656651266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321988.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 10656651266 in words is "ten billion, six hundred fifty-six million, six hundred fifty-one thousand, two hundred sixty-six".