65505065520210 has 32 divisors (see below), whose sum is σ = 159106279631040. Its totient is φ = 17257559429568.

The previous prime is 65505065520157. The next prime is 65505065520217. The reversal of 65505065520210 is 1202556050556.

It is not an unprimeable number, because it can be changed into a prime (65505065520217) 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, 13153625125 + ... + 13153630104.

It is an arithmetic number, because the mean of its divisors is an integer number (4972071238470).

Almost surely, 2^{65505065520210} is an apocalyptic number.

65505065520210 is an abundant number, since it is smaller than the sum of its proper divisors (93601214110830).

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

65505065520210 is a wasteful number, since it uses less digits than its factorization.

65505065520210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26307255322.

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

The spelling of 65505065520210 in words is "sixty-five trillion, five hundred five billion, sixty-five million, five hundred twenty thousand, two hundred ten".