1343553640265 has 4 divisors (see below), whose sum is σ = 1612264368324. Its totient is φ = 1074842912208.

The previous prime is 1343553640237. The next prime is 1343553640301. The reversal of 1343553640265 is 5620463553431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 196227736576 + 1147325903689 = 442976^2 + 1071133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343553640265 - 2¹⁶ = 1343553574729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134355364022 + ... + 134355364031.

It is an arithmetic number, because the mean of its divisors is an integer number (403066092081).

Almost surely, 2^{1343553640265} is an apocalyptic number.

It is an amenable number.

1343553640265 is a deficient number, since it is larger than the sum of its proper divisors (268710728059).

1343553640265 is an equidigital number, since it uses as much as digits as its factorization.

1343553640265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268710728058.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 1343553640265 in words is "one trillion, three hundred forty-three billion, five hundred fifty-three million, six hundred forty thousand, two hundred sixty-five".