133566689011 has 32 divisors (see below), whose sum is σ = 155681326080. Its totient is φ = 112234315776.

The previous prime is 133566688999. The next prime is 133566689093. The reversal of 133566689011 is 110986665331.

It is not a de Polignac number, because 133566689011 - 2⁷ = 133566688883 is a prime.

It is a super-2 number, since 2×133566689011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133566689911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94794675 + ... + 94796083.

It is an arithmetic number, because the mean of its divisors is an integer number (4865041440).

Almost surely, 2^133566689011 is an apocalyptic number.

133566689011 is a deficient number, since it is larger than the sum of its proper divisors (22114637069).

133566689011 is a wasteful number, since it uses less digits than its factorization.

133566689011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 133566689011 in words is "one hundred thirty-three billion, five hundred sixty-six million, six hundred eighty-nine thousand, eleven".