13165326552556 has 12 divisors (see below), whose sum is σ = 23039346957480. Its totient is φ = 6582655993280.

The previous prime is 13165326552541. The next prime is 13165326552569. The reversal of 13165326552556 is 65525562356131.

It is a junction number, because it is equal to n+sod(n) for n = 13165326552497 and 13165326552506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5678415 + ... + 7653433.

It is an arithmetic number, because the mean of its divisors is an integer number (1919945579790).

Almost surely, 2^{13165326552556} is an apocalyptic number.

It is an amenable number.

13165326552556 is a deficient number, since it is larger than the sum of its proper divisors (9874020404924).

13165326552556 is a wasteful number, since it uses less digits than its factorization.

13165326552556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641504 (or 3641502 counting only the distinct ones).

The product of its digits is 24300000, while the sum is 55.

The spelling of 13165326552556 in words is "thirteen trillion, one hundred sixty-five billion, three hundred twenty-six million, five hundred fifty-two thousand, five hundred fifty-six".