65345203061 has 4 divisors (see below), whose sum is σ = 65363272812. Its totient is φ = 65327133312.

The previous prime is 65345203031. The next prime is 65345203093. The reversal of 65345203061 is 16030254356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22198020100 + 43147182961 = 148990^2 + 207719^2 .

It is a cyclic number.

It is not a de Polignac number, because 65345203061 - 2²⁶ = 65278094197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65345203031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9029450 + ... + 9036683.

It is an arithmetic number, because the mean of its divisors is an integer number (16340818203).

Almost surely, 2^65345203061 is an apocalyptic number.

It is an amenable number.

65345203061 is a deficient number, since it is larger than the sum of its proper divisors (18069751).

65345203061 is a wasteful number, since it uses less digits than its factorization.

65345203061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18069750.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 65345203061 in words is "sixty-five billion, three hundred forty-five million, two hundred three thousand, sixty-one".