655344044624 has 10 divisors (see below), whose sum is σ = 1269729086490. Its totient is φ = 327672022304.

The previous prime is 655344044609. The next prime is 655344044627. The reversal of 655344044624 is 426440443556.

It can be written as a sum of positive squares in only one way, i.e., 640960360000 + 14383684624 = 800600^2 + 119932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655344044627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20479501379 + ... + 20479501410.

It is an arithmetic number, because the mean of its divisors is an integer number (126972908649).

Almost surely, 2^655344044624 is an apocalyptic number.

It is an amenable number.

655344044624 is a deficient number, since it is larger than the sum of its proper divisors (614385041866).

655344044624 is a wasteful number, since it uses less digits than its factorization.

655344044624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40959002797 (or 40959002791 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 47.

The spelling of 655344044624 in words is "six hundred fifty-five billion, three hundred forty-four million, forty-four thousand, six hundred twenty-four".