13671566651 has 12 divisors (see below), whose sum is σ = 14528192928. Its totient is φ = 12862829952.

The previous prime is 13671566621. The next prime is 13671566677. The reversal of 13671566651 is 15666517631.

It is not a de Polignac number, because 13671566651 - 2¹⁰ = 13671565627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13671566596 and 13671566605.

It is not an unprimeable number, because it can be changed into a prime (13671566621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1044590 + ... + 1057596.

It is an arithmetic number, because the mean of its divisors is an integer number (1210682744).

Almost surely, 2^13671566651 is an apocalyptic number.

13671566651 is a deficient number, since it is larger than the sum of its proper divisors (856626277).

13671566651 is a wasteful number, since it uses less digits than its factorization.

13671566651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16678 (or 16661 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The spelling of 13671566651 in words is "thirteen billion, six hundred seventy-one million, five hundred sixty-six thousand, six hundred fifty-one".