80203966560 has 192 divisors, whose sum is σ = 280844444160. Its totient is φ = 21377779200.

The previous prime is 80203966541. The next prime is 80203966571. The reversal of 80203966560 is 6566930208.

It is a happy number.

80203966560 is a `hidden beast` number, since 8 + 0 + 20 + 3 + 9 + 66 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17498029 + ... + 17502611.

It is an arithmetic number, because the mean of its divisors is an integer number (1462731480).

Almost surely, 2^80203966560 is an apocalyptic number.

80203966560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80203966560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140422222080).

80203966560 is an abundant number, since it is smaller than the sum of its proper divisors (200640477600).

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

80203966560 is a wasteful number, since it uses less digits than its factorization.

80203966560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8658 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 80203966560 in words is "eighty billion, two hundred three million, nine hundred sixty-six thousand, five hundred sixty".