65841822280 has 128 divisors (see below), whose sum is σ = 160906435200. Its totient is φ = 24103360512.

The previous prime is 65841822269. The next prime is 65841822287. The reversal of 65841822280 is 8222814856.

It is a super-2 number, since 2×65841822280² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65841822280.

It is not an unprimeable number, because it can be changed into a prime (65841822287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52296291 + ... + 52297549.

It is an arithmetic number, because the mean of its divisors is an integer number (1257081525).

Almost surely, 2^65841822280 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 65841822280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80453217600).

65841822280 is an abundant number, since it is smaller than the sum of its proper divisors (95064612920).

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

65841822280 is a wasteful number, since it uses less digits than its factorization.

65841822280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063 (or 2059 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 65841822280 in words is "sixty-five billion, eight hundred forty-one million, eight hundred twenty-two thousand, two hundred eighty".