80712171036 has 384 divisors, whose sum is σ = 254066176000. Its totient is φ = 22406497344.

The previous prime is 80712170983. The next prime is 80712171049. The reversal of 80712171036 is 63017121708.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 111020505 + ... + 111021231.

Almost surely, 2^80712171036 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 80712171036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127033088000).

80712171036 is an abundant number, since it is smaller than the sum of its proper divisors (173354004964).

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

80712171036 is an equidigital number, since it uses as much as digits as its factorization.

80712171036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 80712171036 in words is "eighty billion, seven hundred twelve million, one hundred seventy-one thousand, thirty-six".