561664142025301 has 32 divisors (see below), whose sum is σ = 646351381440000. Its totient is φ = 478098693844992.

The previous prime is 561664142025293. The next prime is 561664142025323. The reversal of 561664142025301 is 103520241466165.

It is a cyclic number.

It is not a de Polignac number, because 561664142025301 - 2³ = 561664142025293 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 (561664142025001) 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 31 ways as a sum of consecutive naturals, for example, 6173648325 + ... + 6173739301.

It is an arithmetic number, because the mean of its divisors is an integer number (20198480670000).

Almost surely, 2^{561664142025301} is an apocalyptic number.

It is an amenable number.

561664142025301 is a deficient number, since it is larger than the sum of its proper divisors (84687239414699).

561664142025301 is a wasteful number, since it uses less digits than its factorization.

561664142025301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99541.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 561664142025301 in words is "five hundred sixty-one trillion, six hundred sixty-four billion, one hundred forty-two million, twenty-five thousand, three hundred one".