65555560122 has 32 divisors (see below), whose sum is σ = 148627993920. Its totient is φ = 19109312640.

The previous prime is 65555560121. The next prime is 65555560139. The reversal of 65555560122 is 22106555556.

It is not an unprimeable number, because it can be changed into a prime (65555560121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22115779 + ... + 22118742.

It is an arithmetic number, because the mean of its divisors is an integer number (4644624810).

Almost surely, 2^65555560122 is an apocalyptic number.

65555560122 is an abundant number, since it is smaller than the sum of its proper divisors (83072433798).

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

65555560122 is a wasteful number, since it uses less digits than its factorization.

65555560122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44234558.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 65555560122 in words is "sixty-five billion, five hundred fifty-five million, five hundred sixty thousand, one hundred twenty-two".