133665305466 has 96 divisors (see below), whose sum is σ = 339146527104. Its totient is φ = 34374384000.

The previous prime is 133665305419. The next prime is 133665305471. The reversal of 133665305466 is 664503566331.

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, 383076 + ... + 643488.

It is an arithmetic number, because the mean of its divisors is an integer number (3532776324).

Almost surely, 2^133665305466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133665305466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169573263552).

133665305466 is an abundant number, since it is smaller than the sum of its proper divisors (205481221638).

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

133665305466 is a wasteful number, since it uses less digits than its factorization.

133665305466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260548 (or 260537 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 48.

The spelling of 133665305466 in words is "one hundred thirty-three billion, six hundred sixty-five million, three hundred five thousand, four hundred sixty-six".