1605416441353 has 4 divisors (see below), whose sum is σ = 1615642023940. Its totient is φ = 1595190858768.

The previous prime is 1605416441351. The next prime is 1605416441383. The reversal of 1605416441353 is 3531446145061.

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 377546344704 + 1227870096649 = 614448^2 + 1108093^2 .

It is a cyclic number.

It is not a de Polignac number, because 1605416441353 - 2¹ = 1605416441351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1605416441351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5112791058 + ... + 5112791371.

It is an arithmetic number, because the mean of its divisors is an integer number (403910505985).

Almost surely, 2^{1605416441353} is an apocalyptic number.

It is an amenable number.

1605416441353 is a deficient number, since it is larger than the sum of its proper divisors (10225582587).

1605416441353 is a wasteful number, since it uses less digits than its factorization.

1605416441353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225582586.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 1605416441353 in words is "one trillion, six hundred five billion, four hundred sixteen million, four hundred forty-one thousand, three hundred fifty-three".