65602137145 has 4 divisors (see below), whose sum is σ = 78722564580. Its totient is φ = 52481709712.

The previous prime is 65602137127. The next prime is 65602137151. The reversal of 65602137145 is 54173120656.

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 35674521129 + 29927616016 = 188877^2 + 172996^2 .

It is a cyclic number.

It is not a de Polignac number, because 65602137145 - 2¹³ = 65602128953 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 65602137098 and 65602137107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6560213710 + ... + 6560213719.

It is an arithmetic number, because the mean of its divisors is an integer number (19680641145).

Almost surely, 2^65602137145 is an apocalyptic number.

It is an amenable number.

65602137145 is a deficient number, since it is larger than the sum of its proper divisors (13120427435).

65602137145 is a wasteful number, since it uses less digits than its factorization.

65602137145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13120427434.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 65602137145 in words is "sixty-five billion, six hundred two million, one hundred thirty-seven thousand, one hundred forty-five".