133632021009 has 16 divisors (see below), whose sum is σ = 181110979584. Its totient is φ = 87620764800.

The previous prime is 133632020957. The next prime is 133632021037. The reversal of 133632021009 is 900120236331.

It is not a de Polignac number, because 133632021009 - 2⁹ = 133632020497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133632021709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3625744 + ... + 3662414.

It is an arithmetic number, because the mean of its divisors is an integer number (11319436224).

Almost surely, 2^133632021009 is an apocalyptic number.

It is an amenable number.

133632021009 is a deficient number, since it is larger than the sum of its proper divisors (47478958575).

133632021009 is a wasteful number, since it uses less digits than its factorization.

133632021009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56648.

The product of its (nonzero) digits is 5832, while the sum is 30.

The spelling of 133632021009 in words is "one hundred thirty-three billion, six hundred thirty-two million, twenty-one thousand, nine".