13550306065 has 32 divisors (see below), whose sum is σ = 16672638240. Its totient is φ = 10569062400.

The previous prime is 13550306053. The next prime is 13550306083. The reversal of 13550306065 is 56060305531.

It can be written as a sum of positive squares in 16 ways, for example, as 13211893249 + 338412816 = 114943^2 + 18396^2 .

It is not a de Polignac number, because 13550306065 - 2⁹ = 13550305553 is a prime.

It is a super-2 number, since 2×13550306065² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13550306065.

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, 26008005 + ... + 26008525.

It is an arithmetic number, because the mean of its divisors is an integer number (521019945).

Almost surely, 2^13550306065 is an apocalyptic number.

It is an amenable number.

13550306065 is a deficient number, since it is larger than the sum of its proper divisors (3122332175).

13550306065 is a wasteful number, since it uses less digits than its factorization.

13550306065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 13550306065 in words is "thirteen billion, five hundred fifty million, three hundred six thousand, sixty-five".