13066208642 has 4 divisors (see below), whose sum is σ = 19599312966. Its totient is φ = 6533104320.

The previous prime is 13066208611. The next prime is 13066208657. The reversal of 13066208642 is 24680266031.

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., 8714035801 + 4352172841 = 93349^2 + 65971^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13066208596 and 13066208605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3266552159 + ... + 3266552162.

Almost surely, 2^13066208642 is an apocalyptic number.

13066208642 is a deficient number, since it is larger than the sum of its proper divisors (6533104324).

13066208642 is an equidigital number, since it uses as much as digits as its factorization.

13066208642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533104323.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 13066208642 in words is "thirteen billion, sixty-six million, two hundred eight thousand, six hundred forty-two".