1996159566 has 16 divisors (see below), whose sum is σ = 4009755600. Its totient is φ = 662480448.

The previous prime is 1996159559. The next prime is 1996159573. The reversal of 1996159566 is 6659516991.

It is an interprime number because it is at equal distance from previous prime (1996159559) and next prime (1996159573).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725031 + ... + 727778.

It is an arithmetic number, because the mean of its divisors is an integer number (250609725).

Almost surely, 2^1996159566 is an apocalyptic number.

1996159566 is an abundant number, since it is smaller than the sum of its proper divisors (2013596034).

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

1996159566 is a wasteful number, since it uses less digits than its factorization.

1996159566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453043.

The product of its digits is 3936600, while the sum is 57.

The square root of 1996159566 is about 44678.4015604856. The cubic root of 1996159566 is about 1259.1140925570.

The spelling of 1996159566 in words is "one billion, nine hundred ninety-six million, one hundred fifty-nine thousand, five hundred sixty-six".