80231665536 has 192 divisors, whose sum is σ = 260279989200. Its totient is φ = 24312499200.

The previous prime is 80231665523. The next prime is 80231665561. The reversal of 80231665536 is 63556613208.

80231665536 is a `hidden beast` number, since 8 + 0 + 2 + 31 + 66 + 553 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 80231665491 and 80231665500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322246 + ... + 514106.

Almost surely, 2^80231665536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80231665536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130139994600).

80231665536 is an abundant number, since it is smaller than the sum of its proper divisors (180048323664).

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

80231665536 is a wasteful number, since it uses less digits than its factorization.

80231665536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191906 (or 191877 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 80231665536 in words is "eighty billion, two hundred thirty-one million, six hundred sixty-five thousand, five hundred thirty-six".