133681586126 has 32 divisors (see below), whose sum is σ = 232417019520. Its totient is φ = 57028212000.

The previous prime is 133681586123. The next prime is 133681586141. The reversal of 133681586126 is 621685186331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133681586123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449725 + ... + 1539176.

It is an arithmetic number, because the mean of its divisors is an integer number (7263031860).

Almost surely, 2^133681586126 is an apocalyptic number.

133681586126 is a deficient number, since it is larger than the sum of its proper divisors (98735433394).

133681586126 is a wasteful number, since it uses less digits than its factorization.

133681586126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989040.

The product of its digits is 1244160, while the sum is 50.

The spelling of 133681586126 in words is "one hundred thirty-three billion, six hundred eighty-one million, five hundred eighty-six thousand, one hundred twenty-six".