133361146566 has 96 divisors (see below), whose sum is σ = 308108586240. Its totient is φ = 41567867712.

The previous prime is 133361146549. The next prime is 133361146591. The reversal of 133361146566 is 665641163331.

133361146566 is a `hidden beast` number, since 1 + 3 + 3 + 36 + 11 + 46 + 566 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53279271 + ... + 53281773.

It is an arithmetic number, because the mean of its divisors is an integer number (3209464440).

Almost surely, 2^133361146566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133361146566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154054293120).

133361146566 is an abundant number, since it is smaller than the sum of its proper divisors (174747439674).

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

133361146566 is a wasteful number, since it uses less digits than its factorization.

133361146566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490 (or 4487 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 133361146566 in words is "one hundred thirty-three billion, three hundred sixty-one million, one hundred forty-six thousand, five hundred sixty-six".