1320507554305 has 16 divisors (see below), whose sum is σ = 1669301726400. Its totient is φ = 1000030415040.

The previous prime is 1320507554281. The next prime is 1320507554323. The reversal of 1320507554305 is 5034557050231.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1320507554305 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 15 ways as a sum of consecutive naturals, for example, 5260810 + ... + 5506099.

It is an arithmetic number, because the mean of its divisors is an integer number (104331357900).

Almost surely, 2^{1320507554305} is an apocalyptic number.

It is an amenable number.

1320507554305 is a deficient number, since it is larger than the sum of its proper divisors (348794172095).

1320507554305 is a wasteful number, since it uses less digits than its factorization.

1320507554305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768224.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 1320507554305 in words is "one trillion, three hundred twenty billion, five hundred seven million, five hundred fifty-four thousand, three hundred five".