1996136566 has 8 divisors (see below), whose sum is σ = 3170334600. Its totient is φ = 939358368.

The previous prime is 1996136551. The next prime is 1996136587. The reversal of 1996136566 is 6656316991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1996136566² = 7969122380244544712, which contains 22 as substring.

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, 29354916 + ... + 29354983.

It is an arithmetic number, because the mean of its divisors is an integer number (396291825).

Almost surely, 2^1996136566 is an apocalyptic number.

1996136566 is a deficient number, since it is larger than the sum of its proper divisors (1174198034).

1996136566 is a wasteful number, since it uses less digits than its factorization.

1996136566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58709918.

The product of its digits is 1574640, while the sum is 52.

The square root of 1996136566 is about 44678.1441646808. The cubic root of 1996136566 is about 1259.1092566484.

The spelling of 1996136566 in words is "one billion, nine hundred ninety-six million, one hundred thirty-six thousand, five hundred sixty-six".