655244502641 has 4 divisors (see below), whose sum is σ = 693788296932. Its totient is φ = 616700708352.

The previous prime is 655244502623. The next prime is 655244502673. The reversal of 655244502641 is 146205442556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 507911357041 + 147333145600 = 712679^2 + 383840^2 .

It is not a de Polignac number, because 655244502641 - 2²² = 655240308337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 655244502592 and 655244502601.

It is not an unprimeable number, because it can be changed into a prime (655244592641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19271897120 + ... + 19271897153.

It is an arithmetic number, because the mean of its divisors is an integer number (173447074233).

Almost surely, 2^655244502641 is an apocalyptic number.

It is an amenable number.

655244502641 is a deficient number, since it is larger than the sum of its proper divisors (38543794291).

655244502641 is a wasteful number, since it uses less digits than its factorization.

655244502641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38543794290.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 655244502641 in words is "six hundred fifty-five billion, two hundred forty-four million, five hundred two thousand, six hundred forty-one".