13106666651 has 4 divisors (see below), whose sum is σ = 14114871792. Its totient is φ = 12098461512.

The previous prime is 13106666627. The next prime is 13106666689. The reversal of 13106666651 is 15666660131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13106666651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13106666599 and 13106666608.

It is not an unprimeable number, because it can be changed into a prime (13106666611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504102551 + ... + 504102576.

It is an arithmetic number, because the mean of its divisors is an integer number (3528717948).

Almost surely, 2^13106666651 is an apocalyptic number.

13106666651 is a deficient number, since it is larger than the sum of its proper divisors (1008205141).

13106666651 is a wasteful number, since it uses less digits than its factorization.

13106666651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008205140.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 13106666651 in words is "thirteen billion, one hundred six million, six hundred sixty-six thousand, six hundred fifty-one".