561262226184066 has 64 divisors (see below), whose sum is σ = 1251185436426240. Its totient is φ = 166386402428160.

The previous prime is 561262226184059. The next prime is 561262226184071. The reversal of 561262226184066 is 660481622262165.

It is a junction number, because it is equal to n+sod(n) for n = 561262226183997 and 561262226184015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33460071 + ... + 47350826.

It is an arithmetic number, because the mean of its divisors is an integer number (19549772444160).

Almost surely, 2^{561262226184066} is an apocalyptic number.

561262226184066 is an abundant number, since it is smaller than the sum of its proper divisors (689923210242174).

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

561262226184066 is a wasteful number, since it uses less digits than its factorization.

561262226184066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80813199.

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 561262226184066 in words is "five hundred sixty-one trillion, two hundred sixty-two billion, two hundred twenty-six million, one hundred eighty-four thousand, sixty-six".