1606236544566 has 48 divisors (see below), whose sum is σ = 3626086136400. Its totient is φ = 513230606784.

The previous prime is 1606236544547. The next prime is 1606236544579. The reversal of 1606236544566 is 6654456326061.

1606236544566 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 2 + 36 + 5 + 44 + 566 = 666.

It is a congruent number.

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, 10996081 + ... + 11141196.

It is an arithmetic number, because the mean of its divisors is an integer number (75543461175).

Almost surely, 2^{1606236544566} is an apocalyptic number.

1606236544566 is an abundant number, since it is smaller than the sum of its proper divisors (2019849591834).

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

1606236544566 is a wasteful number, since it uses less digits than its factorization.

1606236544566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137453 (or 22137450 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 1606236544566 in words is "one trillion, six hundred six billion, two hundred thirty-six million, five hundred forty-four thousand, five hundred sixty-six".