13645557796 has 24 divisors (see below), whose sum is σ = 25849893944. Its totient is φ = 6265313280.

The previous prime is 13645557787. The next prime is 13645557811. The reversal of 13645557796 is 69775554631.

It can be written as a sum of positive squares in 4 ways, for example, as 1383096100 + 12262461696 = 37190^2 + 110736^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13645557796.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669795 + ... + 689866.

Almost surely, 2^13645557796 is an apocalyptic number.

It is an amenable number.

13645557796 is a deficient number, since it is larger than the sum of its proper divisors (12204336148).

13645557796 is a wasteful number, since it uses less digits than its factorization.

13645557796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359871 (or 1359869 counting only the distinct ones).

The product of its digits is 23814000, while the sum is 58.

The spelling of 13645557796 in words is "thirteen billion, six hundred forty-five million, five hundred fifty-seven thousand, seven hundred ninety-six".