561065166050 has 24 divisors (see below), whose sum is σ = 1045434869136. Its totient is φ = 224027429840.

The previous prime is 561065166043. The next prime is 561065166113. The reversal of 561065166050 is 50661560165.

It is a junction number, because it is equal to n+sod(n) for n = 561065165989 and 561065166007.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9937484 + ... + 9993783.

It is an arithmetic number, because the mean of its divisors is an integer number (43559786214).

Almost surely, 2^561065166050 is an apocalyptic number.

561065166050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561065166050 is a deficient number, since it is larger than the sum of its proper divisors (484369703086).

561065166050 is a wasteful number, since it uses less digits than its factorization.

561065166050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19931842 (or 19931837 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 561065166050 in words is "five hundred sixty-one billion, sixty-five million, one hundred sixty-six thousand, fifty".