83440311632 has 20 divisors (see below), whose sum is σ = 165608668596. Its totient is φ = 40702590720.

The previous prime is 83440311587. The next prime is 83440311641. The reversal of 83440311632 is 23611304438.

It can be written as a sum of positive squares in 2 ways, for example, as 1875236416 + 81565075216 = 43304^2 + 285596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83440311592 and 83440311601.

It is a congruent number.

It is an unprimeable number.

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, 63597143 + ... + 63598454.

Almost surely, 2^83440311632 is an apocalyptic number.

83440311632 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

83440311632 is a deficient number, since it is larger than the sum of its proper divisors (82168356964).

83440311632 is a wasteful number, since it uses less digits than its factorization.

83440311632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127195646 (or 127195640 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 83440311632 in words is "eighty-three billion, four hundred forty million, three hundred eleven thousand, six hundred thirty-two".