1605577063552 has 192 divisors, whose sum is σ = 4066942767840. Its totient is φ = 624339394560.

The previous prime is 1605577063549. The next prime is 1605577063579. The reversal of 1605577063552 is 2553607755061.

It is a self number, because there is not a number n which added to its sum of digits gives 1605577063552.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36060568 + ... + 36105064.

Almost surely, 2^{1605577063552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1605577063552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033471383920).

1605577063552 is an abundant number, since it is smaller than the sum of its proper divisors (2461365704288).

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

1605577063552 is a wasteful number, since it uses less digits than its factorization.

1605577063552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45059 (or 45040 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 52.

The spelling of 1605577063552 in words is "one trillion, six hundred five billion, five hundred seventy-seven million, sixty-three thousand, five hundred fifty-two".