10002257866 has 4 divisors (see below), whose sum is σ = 15003386802. Its totient is φ = 5001128932.

The previous prime is 10002257857. The next prime is 10002257879. The reversal of 10002257866 is 66875220001.

It is a happy number.

10002257866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66875220001 = 29 ⋅2306042069.

It can be written as a sum of positive squares in only one way, i.e., 9707963841 + 294294025 = 98529^2 + 17155^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500564465 + ... + 2500564468.

Almost surely, 2^10002257866 is an apocalyptic number.

10002257866 is a deficient number, since it is larger than the sum of its proper divisors (5001128936).

10002257866 is an equidigital number, since it uses as much as digits as its factorization.

10002257866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001128935.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 10002257866 its reverse (66875220001), we get a palindrome (76877477867).

The spelling of 10002257866 in words is "ten billion, two million, two hundred fifty-seven thousand, eight hundred sixty-six".