65207220000 has 480 divisors, whose sum is σ = 236079930240. Its totient is φ = 15651840000.

The previous prime is 65207219969. The next prime is 65207220007. The reversal of 65207220000 is 2270256.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (65207220007) 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 79 ways as a sum of consecutive naturals, for example, 31978981 + ... + 31981019.

It is an arithmetic number, because the mean of its divisors is an integer number (491833188).

Almost surely, 2^65207220000 is an apocalyptic number.

65207220000 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 65207220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118039965120).

65207220000 is an abundant number, since it is smaller than the sum of its proper divisors (170872710240).

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

65207220000 is a wasteful number, since it uses less digits than its factorization.

65207220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

Adding to 65207220000 its reverse (2270256), we get a palindrome (65209490256).

The spelling of 65207220000 in words is "sixty-five billion, two hundred seven million, two hundred twenty thousand".