1340204302556 has 12 divisors (see below), whose sum is σ = 2680408605168. Its totient is φ = 574373272512.

The previous prime is 1340204302513. The next prime is 1340204302609. The reversal of 1340204302556 is 6552034020431.

1340204302556 is an admirable number.

It is a super-2 number, since 2×1340204302556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23932219661 + ... + 23932219716.

It is an arithmetic number, because the mean of its divisors is an integer number (223367383764).

Almost surely, 2^{1340204302556} is an apocalyptic number.

It is an amenable number.

1340204302556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1340204302556 is a wasteful number, since it uses less digits than its factorization.

1340204302556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47864439388 (or 47864439386 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 1340204302556 its reverse (6552034020431), we get a palindrome (7892238322987).

The spelling of 1340204302556 in words is "one trillion, three hundred forty billion, two hundred four million, three hundred two thousand, five hundred fifty-six".