655132510322065 has 16 divisors (see below), whose sum is σ = 791182927433808. Its totient is φ = 520767347337216.

The previous prime is 655132510322063. The next prime is 655132510322113. The reversal of 655132510322065 is 560223015231556.

It can be written as a sum of positive squares in 8 ways, for example, as 123597272039761 + 531535238282304 = 11117431^2 + 23055048^2 .

It is a cyclic number.

It is not a de Polignac number, because 655132510322065 - 2¹ = 655132510322063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655132510322063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 662992092 + ... + 663979501.

It is an arithmetic number, because the mean of its divisors is an integer number (49448932964613).

Almost surely, 2^{655132510322065} is an apocalyptic number.

It is an amenable number.

655132510322065 is a deficient number, since it is larger than the sum of its proper divisors (136050417111743).

655132510322065 is a wasteful number, since it uses less digits than its factorization.

655132510322065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326972228.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 655132510322065 in words is "six hundred fifty-five trillion, one hundred thirty-two billion, five hundred ten million, three hundred twenty-two thousand, sixty-five".