561218056083 has 12 divisors (see below), whose sum is σ = 831439924120. Its totient is φ = 374142775608.

The previous prime is 561218056067. The next prime is 561218056177. The reversal of 561218056083 is 380650812165.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

561218056083 is a `hidden beast` number, since 5 + 6 + 1 + 2 + 1 + 8 + 0 + 560 + 83 = 666.

It is not a de Polignac number, because 561218056083 - 2⁴ = 561218056067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561218056013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3820585 + ... + 3964757.

Almost surely, 2^561218056083 is an apocalyptic number.

561218056083 is a deficient number, since it is larger than the sum of its proper divisors (270221868037).

561218056083 is an frugal number, since it uses more digits than its factorization.

561218056083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288355 (or 144176 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 561218056083 in words is "five hundred sixty-one billion, two hundred eighteen million, fifty-six thousand, eighty-three".