1345434616505 has 16 divisors (see below), whose sum is σ = 1870443744384. Its totient is φ = 909945601920.

The previous prime is 1345434616499. The next prime is 1345434616507. The reversal of 1345434616505 is 5056164345431.

It is not a de Polignac number, because 1345434616505 - 2⁴ = 1345434616489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1345434616505.

It is not an unprimeable number, because it can be changed into a prime (1345434616507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 263291891 + ... + 263297000.

It is an arithmetic number, because the mean of its divisors is an integer number (116902734024).

Almost surely, 2^{1345434616505} is an apocalyptic number.

It is an amenable number.

1345434616505 is a deficient number, since it is larger than the sum of its proper divisors (525009127879).

1345434616505 is an equidigital number, since it uses as much as digits as its factorization.

1345434616505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526588976.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 1345434616505 in words is "one trillion, three hundred forty-five billion, four hundred thirty-four million, six hundred sixteen thousand, five hundred five".