65560577060661 has 8 divisors (see below), whose sum is σ = 87414269157600. Its totient is φ = 43706968168752.

The previous prime is 65560577060639. The next prime is 65560577060707. The reversal of 65560577060661 is 16606077506556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65560577060661 - 2¹³ = 65560577052469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65560577060595 and 65560577060604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65560577060611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18938910 + ... + 22131503.

It is an arithmetic number, because the mean of its divisors is an integer number (10926783644700).

Almost surely, 2^{65560577060661} is an apocalyptic number.

It is an amenable number.

65560577060661 is a deficient number, since it is larger than the sum of its proper divisors (21853692096939).

65560577060661 is a wasteful number, since it uses less digits than its factorization.

65560577060661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41602515.

The product of its (nonzero) digits is 47628000, while the sum is 60.

The spelling of 65560577060661 in words is "sixty-five trillion, five hundred sixty billion, five hundred seventy-seven million, sixty thousand, six hundred sixty-one".