65224549120 has 36 divisors (see below), whose sum is σ = 156233180880. Its totient is φ = 26089819136.

The previous prime is 65224549109. The next prime is 65224549121. The reversal of 65224549120 is 2194542256.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (65224549121) 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 3 ways as a sum of consecutive naturals, for example, 25477060 + ... + 25479619.

It is an arithmetic number, because the mean of its divisors is an integer number (4339810580).

Almost surely, 2^65224549120 is an apocalyptic number.

It is an amenable number.

65224549120 is an abundant number, since it is smaller than the sum of its proper divisors (91008631760).

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

65224549120 is an equidigital number, since it uses as much as digits as its factorization.

65224549120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50956700 (or 50956686 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 65224549120 in words is "sixty-five billion, two hundred twenty-four million, five hundred forty-nine thousand, one hundred twenty".