561065550611501 has 8 divisors (see below), whose sum is σ = 609871396496544. Its totient is φ = 513066412923120.

The previous prime is 561065550611471. The next prime is 561065550611561. The reversal of 561065550611501 is 105116055560165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561065550611501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561065550611561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201677047715 + ... + 201677050496.

It is an arithmetic number, because the mean of its divisors is an integer number (76233924562068).

Almost surely, 2^{561065550611501} is an apocalyptic number.

It is an amenable number.

561065550611501 is a deficient number, since it is larger than the sum of its proper divisors (48805845885043).

561065550611501 is a wasteful number, since it uses less digits than its factorization.

561065550611501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403354098331.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 561065550611501 in words is "five hundred sixty-one trillion, sixty-five billion, five hundred fifty million, six hundred eleven thousand, five hundred one".