13645320355 has 16 divisors (see below), whose sum is σ = 16755776640. Its totient is φ = 10662911872.

The previous prime is 13645320341. The next prime is 13645320371. The reversal of 13645320355 is 55302354631.

It is a cyclic number.

It is not a de Polignac number, because 13645320355 - 2¹⁵ = 13645287587 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62577 + ... + 176653.

It is an arithmetic number, because the mean of its divisors is an integer number (1047236040).

Almost surely, 2^13645320355 is an apocalyptic number.

13645320355 is a deficient number, since it is larger than the sum of its proper divisors (3110456285).

13645320355 is a wasteful number, since it uses less digits than its factorization.

13645320355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114638.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 13645320355 its reverse (55302354631), we get a palindrome (68947674986).

The spelling of 13645320355 in words is "thirteen billion, six hundred forty-five million, three hundred twenty thousand, three hundred fifty-five".