561055111080 has 32 divisors (see below), whose sum is σ = 1683165333600. Its totient is φ = 149614696256.

The previous prime is 561055111061. The next prime is 561055111081. The reversal of 561055111080 is 80111550165.

It is a super-2 number, since 2×561055111080² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561055111081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2337729510 + ... + 2337729749.

It is an arithmetic number, because the mean of its divisors is an integer number (52598916675).

Almost surely, 2^561055111080 is an apocalyptic number.

It is an amenable number.

561055111080 is an abundant number, since it is smaller than the sum of its proper divisors (1122110222520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561055111080 is a wasteful number, since it uses less digits than its factorization.

561055111080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675459273 (or 4675459269 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 33.

The spelling of 561055111080 in words is "five hundred sixty-one billion, fifty-five million, one hundred eleven thousand, eighty".