133386661837 has 32 divisors (see below), whose sum is σ = 165044880000. Its totient is φ = 105983043840.

The previous prime is 133386661831. The next prime is 133386661841. The reversal of 133386661837 is 738166683331.

It is a cyclic number.

It is not a de Polignac number, because 133386661837 - 2¹¹ = 133386659789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133386661831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5282839 + ... + 5308027.

It is an arithmetic number, because the mean of its divisors is an integer number (5157652500).

Almost surely, 2^133386661837 is an apocalyptic number.

It is an amenable number.

133386661837 is a deficient number, since it is larger than the sum of its proper divisors (31658218163).

133386661837 is a wasteful number, since it uses less digits than its factorization.

133386661837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27181.

The product of its digits is 7838208, while the sum is 55.

The spelling of 133386661837 in words is "one hundred thirty-three billion, three hundred eighty-six million, six hundred sixty-one thousand, eight hundred thirty-seven".