133523606663645 has 32 divisors (see below), whose sum is σ = 184693850542080. Its totient is φ = 91647326975040.

The previous prime is 133523606663633. The next prime is 133523606663669. The reversal of 133523606663645 is 546366606325331.

It is not a de Polignac number, because 133523606663645 - 2³⁶ = 133454887186909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242641109 + ... + 243190778.

It is an arithmetic number, because the mean of its divisors is an integer number (5771682829440).

Almost surely, 2^{133523606663645} is an apocalyptic number.

It is an amenable number.

133523606663645 is a deficient number, since it is larger than the sum of its proper divisors (51170243878435).

133523606663645 is a wasteful number, since it uses less digits than its factorization.

133523606663645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485832185.

The product of its (nonzero) digits is 125971200, while the sum is 59.

The spelling of 133523606663645 in words is "one hundred thirty-three trillion, five hundred twenty-three billion, six hundred six million, six hundred sixty-three thousand, six hundred forty-five".