65500015155020 has 12 divisors (see below), whose sum is σ = 137550031825584. Its totient is φ = 26200006062000.

The previous prime is 65500015155011. The next prime is 65500015155089. The reversal of 65500015155020 is 2055151000556.

It is a happy number.

65500015155020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637500378856 + ... + 1637500378895.

It is an arithmetic number, because the mean of its divisors is an integer number (11462502652132).

Almost surely, 2^{65500015155020} is an apocalyptic number.

It is an amenable number.

65500015155020 is an abundant number, since it is smaller than the sum of its proper divisors (72050016670564).

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

65500015155020 is a wasteful number, since it uses less digits than its factorization.

65500015155020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275000757760 (or 3275000757758 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 35.

Adding to 65500015155020 its reverse (2055151000556), we get a palindrome (67555166155576).

The spelling of 65500015155020 in words is "sixty-five trillion, five hundred billion, fifteen million, one hundred fifty-five thousand, twenty".