1605610204541 has 64 divisors (see below), whose sum is σ = 2050821696000. Its totient is φ = 1226254049280.

The previous prime is 1605610204511. The next prime is 1605610204571. The reversal of 1605610204541 is 1454020165061.

It is an interprime number because it is at equal distance from previous prime (1605610204511) and next prime (1605610204571).

It is a cyclic number.

It is not a de Polignac number, because 1605610204541 - 2¹⁸ = 1605609942397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605610204511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21955445 + ... + 22028453.

It is an arithmetic number, because the mean of its divisors is an integer number (32044089000).

Almost surely, 2^{1605610204541} is an apocalyptic number.

It is an amenable number.

1605610204541 is a deficient number, since it is larger than the sum of its proper divisors (445211491459).

1605610204541 is a wasteful number, since it uses less digits than its factorization.

1605610204541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73222.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 1605610204541 in words is "one trillion, six hundred five billion, six hundred ten million, two hundred four thousand, five hundred forty-one".