10012110665 has 4 divisors (see below), whose sum is σ = 12014532804. Its totient is φ = 8009688528.

The previous prime is 10012110649. The next prime is 10012110671. The reversal of 10012110665 is 56601121001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56601121001 = 193 ⋅293270057.

It can be written as a sum of positive squares in 2 ways, for example, as 3203220409 + 6808890256 = 56597^2 + 82516^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012110665 - 2⁴ = 10012110649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10012110665.

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, 1001211062 + ... + 1001211071.

It is an arithmetic number, because the mean of its divisors is an integer number (3003633201).

Almost surely, 2^10012110665 is an apocalyptic number.

It is an amenable number.

10012110665 is a deficient number, since it is larger than the sum of its proper divisors (2002422139).

10012110665 is an equidigital number, since it uses as much as digits as its factorization.

10012110665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002422138.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 10012110665 its reverse (56601121001), we get a palindrome (66613231666).

The spelling of 10012110665 in words is "ten billion, twelve million, one hundred ten thousand, six hundred sixty-five".