133285305648376 has 32 divisors (see below), whose sum is σ = 285611803361280. Its totient is φ = 57122187026400.

The previous prime is 133285305648347. The next prime is 133285305648413. The reversal of 133285305648376 is 673846503582331.

It is a happy number.

It is a super-2 number, since 2×133285305648376² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47036061 + ... + 49789171.

It is an arithmetic number, because the mean of its divisors is an integer number (8925368855040).

Almost surely, 2^{133285305648376} is an apocalyptic number.

It is an amenable number.

133285305648376 is an abundant number, since it is smaller than the sum of its proper divisors (152326497712904).

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

133285305648376 is a wasteful number, since it uses less digits than its factorization.

133285305648376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617635 (or 3617631 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 64.

The spelling of 133285305648376 in words is "one hundred thirty-three trillion, two hundred eighty-five billion, three hundred five million, six hundred forty-eight thousand, three hundred seventy-six".