12698655106 has 4 divisors (see below), whose sum is σ = 19047982662. Its totient is φ = 6349327552.

The previous prime is 12698655071. The next prime is 12698655119. The reversal of 12698655106 is 60155689621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12687994881 + 10660225 = 112641^2 + 3265^2 .

It is a super-2 number, since 2×12698655106² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12698655106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174663775 + ... + 3174663778.

Almost surely, 2^12698655106 is an apocalyptic number.

12698655106 is a deficient number, since it is larger than the sum of its proper divisors (6349327556).

12698655106 is an equidigital number, since it uses as much as digits as its factorization.

12698655106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349327555.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 12698655106 in words is "twelve billion, six hundred ninety-eight million, six hundred fifty-five thousand, one hundred six".