80795300040 has 640 divisors, whose sum is σ = 338095296000. Its totient is φ = 16849907712.

The previous prime is 80795300023. The next prime is 80795300051. The reversal of 80795300040 is 4000359708.

80795300040 is a `hidden beast` number, since 80 + 7 + 9 + 530 + 0 + 0 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 80795299968 and 80795300004.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 26239221 + ... + 26242299.

It is an arithmetic number, because the mean of its divisors is an integer number (528273900).

Almost surely, 2^80795300040 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 80795300040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169047648000).

80795300040 is an abundant number, since it is smaller than the sum of its proper divisors (257299995960).

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

80795300040 is a wasteful number, since it uses less digits than its factorization.

80795300040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211 (or 3198 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 80795300040 its reverse (4000359708), we get a palindrome (84795659748).

The spelling of 80795300040 in words is "eighty billion, seven hundred ninety-five million, three hundred thousand, forty".