1340190567556 has 81 divisors (see below), whose sum is σ = 2529213872997. Its totient is φ = 621249882240.

The previous prime is 1340190567533. The next prime is 1340190567571. The reversal of 1340190567556 is 6557650910431.

The square root of 1340190567556 is 1157666.

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., 1043400960900 + 296789606656 = 1021470^2 + 544784^2 .

It is a super-2 number, since 2×1340190567556² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3109490661 + ... + 3109491091.

Almost surely, 2^{1340190567556} is an apocalyptic number.

1340190567556 is the 1157666-th square number.

It is an amenable number.

1340190567556 is a deficient number, since it is larger than the sum of its proper divisors (1189023305441).

1340190567556 is an frugal number, since it uses more digits than its factorization.

1340190567556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 1340190567556 in words is "one trillion, three hundred forty billion, one hundred ninety million, five hundred sixty-seven thousand, five hundred fifty-six".