13122535554505 has 32 divisors (see below), whose sum is σ = 17175720592800. Its totient is φ = 9566920046592.

The previous prime is 13122535554379. The next prime is 13122535554529. The reversal of 13122535554505 is 50545553522131.

It can be written as a sum of positive squares in 16 ways, for example, as 3539876679936 + 9582658874569 = 1881456^2 + 3095587^2 .

It is a cyclic number.

It is not a de Polignac number, because 13122535554505 - 2⁹ = 13122535553993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1380700 + ... + 5305789.

It is an arithmetic number, because the mean of its divisors is an integer number (536741268525).

Almost surely, 2^{13122535554505} is an apocalyptic number.

It is an amenable number.

13122535554505 is a deficient number, since it is larger than the sum of its proper divisors (4053185038295).

13122535554505 is a wasteful number, since it uses less digits than its factorization.

13122535554505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6686893.

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 13122535554505 in words is "thirteen trillion, one hundred twenty-two billion, five hundred thirty-five million, five hundred fifty-four thousand, five hundred five".