65483816580 has 1440 divisors, whose sum is σ = 280311736320. Its totient is φ = 12645642240.

The previous prime is 65483816551. The next prime is 65483816617. The reversal of 65483816580 is 8561838456.

65483816580 is a `hidden beast` number, since 6 + 5 + 48 + 3 + 8 + 16 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 735773176 + ... + 735773264.

It is an arithmetic number, because the mean of its divisors is an integer number (194660928).

Almost surely, 2^65483816580 is an apocalyptic number.

65483816580 is a gapful number since it is divisible by the number (60) 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 65483816580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140155868160).

65483816580 is an abundant number, since it is smaller than the sum of its proper divisors (214827919740).

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

65483816580 is a wasteful number, since it uses less digits than its factorization.

65483816580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 65483816580 in words is "sixty-five billion, four hundred eighty-three million, eight hundred sixteen thousand, five hundred eighty".