10661110266 has 8 divisors (see below), whose sum is σ = 21322220544. Its totient is φ = 3553703420.

The previous prime is 10661110249. The next prime is 10661110301. The reversal of 10661110266 is 66201116601.

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

10661110266 is an admirable number.

It is a super-2 number, since 2×10661110266² (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, 888425850 + ... + 888425861.

It is an arithmetic number, because the mean of its divisors is an integer number (2665277568).

Almost surely, 2^10661110266 is an apocalyptic number.

10661110266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10661110266 is a wasteful number, since it uses less digits than its factorization.

10661110266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776851716.

The product of its (nonzero) digits is 2592, while the sum is 30.

Adding to 10661110266 its reverse (66201116601), we get a palindrome (76862226867).

The spelling of 10661110266 in words is "ten billion, six hundred sixty-one million, one hundred ten thousand, two hundred sixty-six".