1995665632 has 24 divisors (see below), whose sum is σ = 4160083536. Its totient is φ = 939136512.

The previous prime is 1995665599. The next prime is 1995665671. The reversal of 1995665632 is 2365665991.

It is a self number, because there is not a number n which added to its sum of digits gives 1995665632.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1833708 + ... + 1834795.

It is an arithmetic number, because the mean of its divisors is an integer number (173336814).

Almost surely, 2^1995665632 is an apocalyptic number.

It is an amenable number.

1995665632 is an abundant number, since it is smaller than the sum of its proper divisors (2164417904).

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

1995665632 is a wasteful number, since it uses less digits than its factorization.

1995665632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668530 (or 3668522 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 52.

The square root of 1995665632 is about 44672.8735587940. The cubic root of 1995665632 is about 1259.0102313603.

The spelling of 1995665632 in words is "one billion, nine hundred ninety-five million, six hundred sixty-five thousand, six hundred thirty-two".