561050111061 has 40 divisors (see below), whose sum is σ = 914391296544. Its totient is φ = 339997862880.

The previous prime is 561050111057. The next prime is 561050111077. The reversal of 561050111061 is 160111050165.

561050111061 is a `hidden beast` number, since 56 + 1 + 0 + 501 + 1 + 106 + 1 = 666.

It is not a de Polignac number, because 561050111061 - 2² = 561050111057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561050111081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11984646 + ... + 12031368.

Almost surely, 2^561050111061 is an apocalyptic number.

It is an amenable number.

561050111061 is a deficient number, since it is larger than the sum of its proper divisors (353341185483).

561050111061 is a wasteful number, since it uses less digits than its factorization.

561050111061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60223 (or 60214 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 561050111061 in words is "five hundred sixty-one billion, fifty million, one hundred eleven thousand, sixty-one".