65554785605 has 8 divisors (see below), whose sum is σ = 78809559072. Its totient is φ = 52347950928.

The previous prime is 65554785577. The next prime is 65554785607. The reversal of 65554785605 is 50658745556.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65554785605 - 2³² = 61259818309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65554785607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11981687 + ... + 11987156.

It is an arithmetic number, because the mean of its divisors is an integer number (9851194884).

Almost surely, 2^65554785605 is an apocalyptic number.

It is an amenable number.

65554785605 is a deficient number, since it is larger than the sum of its proper divisors (13254773467).

65554785605 is a wasteful number, since it uses less digits than its factorization.

65554785605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23969395.

The product of its (nonzero) digits is 25200000, while the sum is 56.

The spelling of 65554785605 in words is "sixty-five billion, five hundred fifty-four million, seven hundred eighty-five thousand, six hundred five".