133681608236 has 12 divisors (see below), whose sum is σ = 255210343080. Its totient is φ = 60764367360.

The previous prime is 133681608217. The next prime is 133681608253. The reversal of 133681608236 is 632806186331.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 1519109141 + ... + 1519109228.

It is an arithmetic number, because the mean of its divisors is an integer number (21267528590).

Almost surely, 2^133681608236 is an apocalyptic number.

It is an amenable number.

133681608236 is a deficient number, since it is larger than the sum of its proper divisors (121528734844).

133681608236 is a wasteful number, since it uses less digits than its factorization.

133681608236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038218384 (or 3038218382 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 133681608236 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred eight thousand, two hundred thirty-six".