1340445352505 has 32 divisors (see below), whose sum is σ = 1950315970560. Its totient is φ = 863928918720.

The previous prime is 1340445352487. The next prime is 1340445352517. The reversal of 1340445352505 is 5052535440431.

It is not a de Polignac number, because 1340445352505 - 2¹⁴ = 1340445336121 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 7851401 + ... + 8020310.

It is an arithmetic number, because the mean of its divisors is an integer number (60947374080).

Almost surely, 2^{1340445352505} is an apocalyptic number.

It is an amenable number.

1340445352505 is a deficient number, since it is larger than the sum of its proper divisors (609870618055).

1340445352505 is a wasteful number, since it uses less digits than its factorization.

1340445352505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15871869.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 1340445352505 in words is "one trillion, three hundred forty billion, four hundred forty-five million, three hundred fifty-two thousand, five hundred five".