320654065655 has 16 divisors (see below), whose sum is σ = 479731797504. Its totient is φ = 199888248480.

The previous prime is 320654065651. The next prime is 320654065673. The reversal of 320654065655 is 556560456023.

It is not a de Polignac number, because 320654065655 - 2² = 320654065651 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 (320654065651) 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, 416433467 + ... + 416434236.

It is an arithmetic number, because the mean of its divisors is an integer number (29983237344).

Almost surely, 2^320654065655 is an apocalyptic number.

320654065655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

320654065655 is a deficient number, since it is larger than the sum of its proper divisors (159077731849).

320654065655 is a wasteful number, since it uses less digits than its factorization.

320654065655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832867726.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 320654065655 in words is "three hundred twenty billion, six hundred fifty-four million, sixty-five thousand, six hundred fifty-five".