80051646560 has 96 divisors (see below), whose sum is σ = 191189642112. Its totient is φ = 31671244800.

The previous prime is 80051646551. The next prime is 80051646599. The reversal of 80051646560 is 6564615008.

It is a happy number.

It is a super-2 number, since 2×80051646560² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21442454 + ... + 21446186.

It is an arithmetic number, because the mean of its divisors is an integer number (1991558772).

Almost surely, 2^80051646560 is an apocalyptic number.

80051646560 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 80051646560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95594821056).

80051646560 is an abundant number, since it is smaller than the sum of its proper divisors (111137995552).

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

80051646560 is a wasteful number, since it uses less digits than its factorization.

80051646560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176 (or 5168 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 80051646560 in words is "eighty billion, fifty-one million, six hundred forty-six thousand, five hundred sixty".