13366134544 has 45 divisors (see below), whose sum is σ = 30132246357. Its totient is φ = 5726956032.

The previous prime is 13366134493. The next prime is 13366134547. The reversal of 13366134544 is 44543166331.

The square root of 13366134544 is 115612.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7393936144 + 5972198400 = 85988^2 + 77280^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13366134497 and 13366134506.

It is not an unprimeable number, because it can be changed into a prime (13366134547) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3235072 + ... + 3239200.

Almost surely, 2^13366134544 is an apocalyptic number.

13366134544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13366134544 is the 115612-nd square number.

It is an amenable number.

13366134544 is an abundant number, since it is smaller than the sum of its proper divisors (16766111813).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13366134544 is an frugal number, since it uses more digits than its factorization.

13366134544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280 (or 4138 counting only the distinct ones).

The product of its digits is 311040, while the sum is 40.

The spelling of 13366134544 in words is "thirteen billion, three hundred sixty-six million, one hundred thirty-four thousand, five hundred forty-four".