133640064355623 has 16 divisors (see below), whose sum is σ = 204555195672576. Its totient is φ = 76023303743520.

The previous prime is 133640064355619. The next prime is 133640064355661. The reversal of 133640064355623 is 326553460046331.

It is not a de Polignac number, because 133640064355623 - 2² = 133640064355619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133640064355223) 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, 14268633408 + ... + 14268642773.

It is an arithmetic number, because the mean of its divisors is an integer number (12784699729536).

Almost surely, 2^{133640064355623} is an apocalyptic number.

133640064355623 is a deficient number, since it is larger than the sum of its proper divisors (70915131316953).

133640064355623 is a wasteful number, since it uses less digits than its factorization.

133640064355623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537276414.

The product of its (nonzero) digits is 13996800, while the sum is 51.

The spelling of 133640064355623 in words is "one hundred thirty-three trillion, six hundred forty billion, sixty-four million, three hundred fifty-five thousand, six hundred twenty-three".