1336356808081 has 3 divisors (see below), whose sum is σ = 1336357964091. Its totient is φ = 1336355652072.

The previous prime is 1336356808019. The next prime is 1336356808099. The reversal of 1336356808081 is 1808086536331.

The square root of 1336356808081 is 1156009.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 916919238481 + 419437569600 = 957559^2 + 647640^2 .

It is not a de Polignac number, because 1336356808081 - 2²³ = 1336348419473 is a prime.

It is a super-2 number, since 2×1336356808081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1336356808001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 578005 + ... + 1734013.

It is an arithmetic number, because the mean of its divisors is an integer number (445452654697).

Almost surely, 2^{1336356808081} is an apocalyptic number.

1336356808081 is the 1156009-th square number.

1336356808081 is the 578005-th centered octagonal number.

It is an amenable number.

1336356808081 is a deficient number, since it is larger than the sum of its proper divisors (1156010).

1336356808081 is an frugal number, since it uses more digits than its factorization.

1336356808081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312018 (or 1156009 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

It can be divided in two parts, 13363 and 56808081, that added together give a square (56821444 = 7538²).

The spelling of 1336356808081 in words is "one trillion, three hundred thirty-six billion, three hundred fifty-six million, eight hundred eight thousand, eighty-one".