65655341661 has 64 divisors (see below), whose sum is σ = 110134886400. Its totient is φ = 33863636736.

The previous prime is 65655341627. The next prime is 65655341663. The reversal of 65655341661 is 16614355656.

65655341661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65655341661 - 2⁶ = 65655341597 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65655341661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65655341663) 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, 22568275 + ... + 22571183.

It is an arithmetic number, because the mean of its divisors is an integer number (1720857600).

Almost surely, 2^65655341661 is an apocalyptic number.

It is an amenable number.

65655341661 is a deficient number, since it is larger than the sum of its proper divisors (44479544739).

65655341661 is a wasteful number, since it uses less digits than its factorization.

65655341661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738.

The product of its digits is 1944000, while the sum is 48.

The spelling of 65655341661 in words is "sixty-five billion, six hundred fifty-five million, three hundred forty-one thousand, six hundred sixty-one".