1605336662016 has 640 divisors, whose sum is σ = 5108018097600. Its totient is φ = 503078584320.

The previous prime is 1605336661931. The next prime is 1605336662021. The reversal of 1605336662016 is 6102666335061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12254478271 + ... + 12254478401.

Almost surely, 2^{1605336662016} is an apocalyptic number.

1605336662016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1605336662016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2554009048800).

1605336662016 is an abundant number, since it is smaller than the sum of its proper divisors (3502681435584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1605336662016 is an frugal number, since it uses more digits than its factorization.

1605336662016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 1605336662016 in words is "one trillion, six hundred five billion, three hundred thirty-six million, six hundred sixty-two thousand, sixteen".