1659688012162 has 16 divisors (see below), whose sum is σ = 2537496719352. Its totient is φ = 813868024320.

The previous prime is 1659688012153. The next prime is 1659688012187. The reversal of 1659688012162 is 2612108869561.

It can be written as a sum of positive squares in 4 ways, for example, as 988630501401 + 671057510761 = 994299^2 + 819181^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790639 + ... + 3332722.

Almost surely, 2^{1659688012162} is an apocalyptic number.

1659688012162 is a deficient number, since it is larger than the sum of its proper divisors (877808707190).

1659688012162 is a wasteful number, since it uses less digits than its factorization.

1659688012162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125973.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 1659688012162 in words is "one trillion, six hundred fifty-nine billion, six hundred eighty-eight million, twelve thousand, one hundred sixty-two".