1606165189634 has 16 divisors (see below), whose sum is σ = 2454805854072. Its totient is φ = 787897813248.

The previous prime is 1606165189627. The next prime is 1606165189723. The reversal of 1606165189634 is 4369815616061.

It can be written as a sum of positive squares in 4 ways, for example, as 1562837518225 + 43327671409 = 1250135^2 + 208153^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1606165189634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400362 + ... + 2995674.

Almost surely, 2^{1606165189634} is an apocalyptic number.

1606165189634 is a deficient number, since it is larger than the sum of its proper divisors (848640664438).

1606165189634 is a wasteful number, since it uses less digits than its factorization.

1606165189634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620821.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 1606165189634 in words is "one trillion, six hundred six billion, one hundred sixty-five million, one hundred eighty-nine thousand, six hundred thirty-four".