65605160016005 has 48 divisors (see below), whose sum is σ = 85691081616336. Its totient is φ = 48050471669760.

The previous prime is 65605160015933. The next prime is 65605160016031. The reversal of 65605160016005 is 50061006150656.

It can be written as a sum of positive squares in 24 ways, for example, as 4657300654084 + 60947859361921 = 2158078^2 + 7806911^2 .

It is not a de Polignac number, because 65605160016005 - 2¹⁰ = 65605160014981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 511592795 + ... + 511721015.

It is an arithmetic number, because the mean of its divisors is an integer number (1785230867007).

Almost surely, 2^{65605160016005} is an apocalyptic number.

It is an amenable number.

65605160016005 is a deficient number, since it is larger than the sum of its proper divisors (20085921600331).

65605160016005 is a wasteful number, since it uses less digits than its factorization.

65605160016005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132714 (or 132677 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 65605160016005 in words is "sixty-five trillion, six hundred five billion, one hundred sixty million, sixteen thousand, five".