80169656488920 has 192 divisors, whose sum is σ = 274349053555200. Its totient is φ = 20247151392000.

The previous prime is 80169656488913. The next prime is 80169656488951. The reversal of 80169656488920 is 2988465696108.

80169656488920 is a `hidden beast` number, since 8 + 0 + 1 + 6 + 9 + 6 + 56 + 488 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20434209 + ... + 24039471.

It is an arithmetic number, because the mean of its divisors is an integer number (1428901320600).

Almost surely, 2^{80169656488920} 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 80169656488920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137174526777600).

80169656488920 is an abundant number, since it is smaller than the sum of its proper divisors (194179397066280).

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

80169656488920 is a wasteful number, since it uses less digits than its factorization.

80169656488920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608550 (or 3608543 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 72.

The spelling of 80169656488920 in words is "eighty trillion, one hundred sixty-nine billion, six hundred fifty-six million, four hundred eighty-eight thousand, nine hundred twenty".