1305641620355 has 8 divisors (see below), whose sum is σ = 1567419801264. Its totient is φ = 1044080058400.

The previous prime is 1305641620319. The next prime is 1305641620453. The reversal of 1305641620355 is 5530261465031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1305641620355 - 2¹⁴ = 1305641603971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54141476 + ... + 54165585.

It is an arithmetic number, because the mean of its divisors is an integer number (195927475158).

Almost surely, 2^{1305641620355} is an apocalyptic number.

1305641620355 is a deficient number, since it is larger than the sum of its proper divisors (261778180909).

1305641620355 is a wasteful number, since it uses less digits than its factorization.

1305641620355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108309477.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 1305641620355 in words is "one trillion, three hundred five billion, six hundred forty-one million, six hundred twenty thousand, three hundred fifty-five".