1995591328140 has 48 divisors (see below), whose sum is σ = 5596771084128. Its totient is φ = 531289557504.

The previous prime is 1995591328139. The next prime is 1995591328183. The reversal of 1995591328140 is 418231955991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27091977 + ... + 27165536.

It is an arithmetic number, because the mean of its divisors is an integer number (116599397586).

Almost surely, 2^{1995591328140} is an apocalyptic number.

1995591328140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1995591328140 is an abundant number, since it is smaller than the sum of its proper divisors (3601179755988).

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

1995591328140 is a wasteful number, since it uses less digits than its factorization.

1995591328140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54258138 (or 54258136 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 57.

The spelling of 1995591328140 in words is "one trillion, nine hundred ninety-five billion, five hundred ninety-one million, three hundred twenty-eight thousand, one hundred forty".