133166605249 has 8 divisors (see below), whose sum is σ = 134859029760. Its totient is φ = 131474350176.

The previous prime is 133166605241. The next prime is 133166605301. The reversal of 133166605249 is 942506661331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133166605249 - 2³ = 133166605241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133166605199 and 133166605208.

It is not an unprimeable number, because it can be changed into a prime (133166605241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506212 + ... + 2558794.

It is an arithmetic number, because the mean of its divisors is an integer number (16857378720).

Almost surely, 2^133166605249 is an apocalyptic number.

It is an amenable number.

133166605249 is a deficient number, since it is larger than the sum of its proper divisors (1692424511).

133166605249 is an equidigital number, since it uses as much as digits as its factorization.

133166605249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84719.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 133166605249 in words is "one hundred thirty-three billion, one hundred sixty-six million, six hundred five thousand, two hundred forty-nine".