10665954686 has 4 divisors (see below), whose sum is σ = 15998932032. Its totient is φ = 5332977342.

The previous prime is 10665954661. The next prime is 10665954713. The reversal of 10665954686 is 68645956601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68645956601 = 173 ⋅396797437.

It is a super-2 number, since 2×10665954686² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2666488670 + ... + 2666488673.

It is an arithmetic number, because the mean of its divisors is an integer number (3999733008).

Almost surely, 2^10665954686 is an apocalyptic number.

10665954686 is a deficient number, since it is larger than the sum of its proper divisors (5332977346).

10665954686 is an equidigital number, since it uses as much as digits as its factorization.

10665954686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332977345.

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 10665954686 in words is "ten billion, six hundred sixty-five million, nine hundred fifty-four thousand, six hundred eighty-six".