133664645354237 has 8 divisors (see below), whose sum is σ = 133846149505920. Its totient is φ = 133483142911680.

The previous prime is 133664645354099. The next prime is 133664645354257. The reversal of 133664645354237 is 732453546466331.

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 133664645354237 - 2³⁰ = 133663571612413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133664645354237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133664645354257) 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, 287788037 + ... + 288252117.

It is an arithmetic number, because the mean of its divisors is an integer number (16730768688240).

Almost surely, 2^{133664645354237} is an apocalyptic number.

It is an amenable number.

133664645354237 is a deficient number, since it is larger than the sum of its proper divisors (181504151683).

133664645354237 is an equidigital number, since it uses as much as digits as its factorization.

133664645354237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854563.

The product of its digits is 391910400, while the sum is 62.

The spelling of 133664645354237 in words is "one hundred thirty-three trillion, six hundred sixty-four billion, six hundred forty-five million, three hundred fifty-four thousand, two hundred thirty-seven".