1605357741652 has 12 divisors (see below), whose sum is σ = 3210715483360. Its totient is φ = 688010460696.

The previous prime is 1605357741649. The next prime is 1605357741679. The reversal of 1605357741652 is 2561477535061.

1605357741652 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1605357741652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28667102502 + ... + 28667102557.

Almost surely, 2^{1605357741652} is an apocalyptic number.

It is an amenable number.

1605357741652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1605357741652 is a wasteful number, since it uses less digits than its factorization.

1605357741652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57334205070 (or 57334205068 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 1605357741652 in words is "one trillion, six hundred five billion, three hundred fifty-seven million, seven hundred forty-one thousand, six hundred fifty-two".