133506172330 has 16 divisors (see below), whose sum is σ = 240506348544. Its totient is φ = 53359082640.

The previous prime is 133506172291. The next prime is 133506172333. The reversal of 133506172330 is 33271605331.

It is not an unprimeable number, because it can be changed into a prime (133506172333) 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 7 ways as a sum of consecutive naturals, for example, 5410362 + ... + 5434981.

It is an arithmetic number, because the mean of its divisors is an integer number (15031646784).

Almost surely, 2^133506172330 is an apocalyptic number.

133506172330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133506172330 is a deficient number, since it is larger than the sum of its proper divisors (107000176214).

133506172330 is a wasteful number, since it uses less digits than its factorization.

133506172330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10846581.

The product of its (nonzero) digits is 34020, while the sum is 34.

Adding to 133506172330 its reverse (33271605331), we get a palindrome (166777777661).

The spelling of 133506172330 in words is "one hundred thirty-three billion, five hundred six million, one hundred seventy-two thousand, three hundred thirty".