133407066639 has 32 divisors (see below), whose sum is σ = 222056271360. Its totient is φ = 69212160000.

The previous prime is 133407066629. The next prime is 133407066733. The reversal of 133407066639 is 936660704331.

It is not a de Polignac number, because 133407066639 - 2⁵ = 133407066607 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133407066629) 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, 197862 + ... + 553139.

It is an arithmetic number, because the mean of its divisors is an integer number (6939258480).

Almost surely, 2^133407066639 is an apocalyptic number.

133407066639 is a deficient number, since it is larger than the sum of its proper divisors (88649204721).

133407066639 is a wasteful number, since it uses less digits than its factorization.

133407066639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751791.

The product of its (nonzero) digits is 1469664, while the sum is 48.

The spelling of 133407066639 in words is "one hundred thirty-three billion, four hundred seven million, sixty-six thousand, six hundred thirty-nine".