571994331996 has 12 divisors (see below), whose sum is σ = 1334653441352. Its totient is φ = 190664777328.

The previous prime is 571994331991. The next prime is 571994332001. The reversal of 571994331996 is 699133499175.

It is an interprime number because it is at equal distance from previous prime (571994331991) and next prime (571994332001).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (571994331991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23833097155 + ... + 23833097178.

Almost surely, 2^571994331996 is an apocalyptic number.

It is an amenable number.

571994331996 is an abundant number, since it is smaller than the sum of its proper divisors (762659109356).

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

571994331996 is a wasteful number, since it uses less digits than its factorization.

571994331996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47666194340 (or 47666194338 counting only the distinct ones).

The product of its digits is 49601160, while the sum is 66.

The spelling of 571994331996 in words is "five hundred seventy-one billion, nine hundred ninety-four million, three hundred thirty-one thousand, nine hundred ninety-six".