65221503105 has 64 divisors (see below), whose sum is σ = 117626019840. Its totient is φ = 30573158400.

The previous prime is 65221503103. The next prime is 65221503163. The reversal of 65221503105 is 50130512256.

It is a happy number.

It is not a de Polignac number, because 65221503105 - 2¹ = 65221503103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65221503101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5892066 + ... + 5903124.

It is an arithmetic number, because the mean of its divisors is an integer number (1837906560).

Almost surely, 2^65221503105 is an apocalyptic number.

It is an amenable number.

65221503105 is a deficient number, since it is larger than the sum of its proper divisors (52404516735).

65221503105 is a wasteful number, since it uses less digits than its factorization.

65221503105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12262.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 65221503105 in words is "sixty-five billion, two hundred twenty-one million, five hundred three thousand, one hundred five".