1591616563042 has 16 divisors (see below), whose sum is σ = 2674854372672. Its totient is φ = 703909044720.

The previous prime is 1591616563037. The next prime is 1591616563091. The reversal of 1591616563042 is 2403656161951.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977650638 + ... + 977652265.

It is an arithmetic number, because the mean of its divisors is an integer number (167178398292).

Almost surely, 2^{1591616563042} is an apocalyptic number.

1591616563042 is a deficient number, since it is larger than the sum of its proper divisors (1083237809630).

1591616563042 is a wasteful number, since it uses less digits than its factorization.

1591616563042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955302953.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 1591616563042 in words is "one trillion, five hundred ninety-one billion, six hundred sixteen million, five hundred sixty-three thousand, forty-two".