65555332061 has 16 divisors (see below), whose sum is σ = 67918645248. Its totient is φ = 63207907200.

The previous prime is 65555332049. The next prime is 65555332151. The reversal of 65555332061 is 16023355556.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65555332061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65555332261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16301231 + ... + 16305251.

It is an arithmetic number, because the mean of its divisors is an integer number (4244915328).

Almost surely, 2^65555332061 is an apocalyptic number.

It is an amenable number.

65555332061 is a deficient number, since it is larger than the sum of its proper divisors (2363313187).

65555332061 is a wasteful number, since it uses less digits than its factorization.

65555332061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852.

The product of its (nonzero) digits is 405000, while the sum is 41.

The spelling of 65555332061 in words is "sixty-five billion, five hundred fifty-five million, three hundred thirty-two thousand, sixty-one".