65706720606601 has 64 divisors (see below), whose sum is σ = 76394207877120. Its totient is φ = 56098437857280.

The previous prime is 65706720606599. The next prime is 65706720606607. The reversal of 65706720606601 is 10660602760756.

It is a cyclic number.

It is not a de Polignac number, because 65706720606601 - 2¹ = 65706720606599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65706720606607) 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, 6446254161 + ... + 6446264353.

It is an arithmetic number, because the mean of its divisors is an integer number (1193659498080).

Almost surely, 2^{65706720606601} is an apocalyptic number.

It is an amenable number.

65706720606601 is a deficient number, since it is larger than the sum of its proper divisors (10687487270519).

65706720606601 is a wasteful number, since it uses less digits than its factorization.

65706720606601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16994.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 65706720606601 in words is "sixty-five trillion, seven hundred six billion, seven hundred twenty million, six hundred six thousand, six hundred one".