832644748661 has 16 divisors (see below), whose sum is σ = 916899092928. Its totient is φ = 749818051200.

The previous prime is 832644748633. The next prime is 832644748667. The reversal of 832644748661 is 166847446238.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-832644748661 is a prime.

It is a super-2 number, since 2×832644748661² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 832644748661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (832644748667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25831991 + ... + 25864203.

It is an arithmetic number, because the mean of its divisors is an integer number (57306193308).

Almost surely, 2^832644748661 is an apocalyptic number.

It is an amenable number.

832644748661 is a deficient number, since it is larger than the sum of its proper divisors (84254344267).

832644748661 is a wasteful number, since it uses less digits than its factorization.

832644748661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54292.

The product of its digits is 37158912, while the sum is 59.

The spelling of 832644748661 in words is "eight hundred thirty-two billion, six hundred forty-four million, seven hundred forty-eight thousand, six hundred sixty-one".