1605402131343 has 8 divisors (see below), whose sum is σ = 2146669518000. Its totient is φ = 1067201416128.

The previous prime is 1605402131339. The next prime is 1605402131407. The reversal of 1605402131343 is 3431312045061.

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

It is not a de Polignac number, because 1605402131343 - 2² = 1605402131339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605402132343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766666638 + ... + 766668731.

It is an arithmetic number, because the mean of its divisors is an integer number (268333689750).

Almost surely, 2^{1605402131343} is an apocalyptic number.

1605402131343 is a deficient number, since it is larger than the sum of its proper divisors (541267386657).

1605402131343 is a wasteful number, since it uses less digits than its factorization.

1605402131343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533335721.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 1605402131343 in words is "one trillion, six hundred five billion, four hundred two million, one hundred thirty-one thousand, three hundred forty-three".