13361550366645 has 36 divisors (see below), whose sum is σ = 25078602240900. Its totient is φ = 6577994022912.

The previous prime is 13361550366607. The next prime is 13361550366691. The reversal of 13361550366645 is 54666305516331.

It can be written as a sum of positive squares in 6 ways, for example, as 2753983397169 + 10607566969476 = 1659513^2 + 3256926^2 .

It is not a de Polignac number, because 13361550366645 - 2¹⁶ = 13361550301109 is a prime.

It is a super-2 number, since 2×13361550366645² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13361550366591 and 13361550366600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 878463820 + ... + 878479029.

It is an arithmetic number, because the mean of its divisors is an integer number (696627840025).

Almost surely, 2^{13361550366645} is an apocalyptic number.

13361550366645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13361550366645 is a deficient number, since it is larger than the sum of its proper divisors (11717051874255).

13361550366645 is a wasteful number, since it uses less digits than its factorization.

13361550366645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756942886 (or 1756942870 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 54.

The spelling of 13361550366645 in words is "thirteen trillion, three hundred sixty-one billion, five hundred fifty million, three hundred sixty-six thousand, six hundred forty-five".