1995042064 has 20 divisors (see below), whose sum is σ = 3919838400. Its totient is φ = 983470880.

The previous prime is 1995042053. The next prime is 1995042113. The reversal of 1995042064 is 4602405991.

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, 876964 + ... + 879235.

It is an arithmetic number, because the mean of its divisors is an integer number (195991920).

Almost surely, 2^1995042064 is an apocalyptic number.

It is an amenable number.

1995042064 is a deficient number, since it is larger than the sum of its proper divisors (1924796336).

1995042064 is a wasteful number, since it uses less digits than its factorization.

1995042064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756278 (or 1756272 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1995042064 is about 44665.8937445564. The cubic root of 1995042064 is about 1258.8790871008.

The spelling of 1995042064 in words is "one billion, nine hundred ninety-five million, forty-two thousand, sixty-four".