133681657276 has 6 divisors (see below), whose sum is σ = 233942900240. Its totient is φ = 66840828636.

The previous prime is 133681657261. The next prime is 133681657331. The reversal of 133681657276 is 672756186331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710207156 + ... + 16710207163.

Almost surely, 2^133681657276 is an apocalyptic number.

It is an amenable number.

133681657276 is a deficient number, since it is larger than the sum of its proper divisors (100261242964).

133681657276 is a wasteful number, since it uses less digits than its factorization.

133681657276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33420414323 (or 33420414321 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The spelling of 133681657276 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred fifty-seven thousand, two hundred seventy-six".