133165426502623 has 2 divisors, whose sum is σ = 133165426502624. Its totient is φ = 133165426502622.

The previous prime is 133165426502593. The next prime is 133165426502659. The reversal of 133165426502623 is 326205624561331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133165426502623 - 2⁹ = 133165426502111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133165426502723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66582713251311 + 66582713251312.

It is an arithmetic number, because the mean of its divisors is an integer number (66582713251312).

Almost surely, 2^{133165426502623} is an apocalyptic number.

133165426502623 is a deficient number, since it is larger than the sum of its proper divisors (1).

133165426502623 is an equidigital number, since it uses as much as digits as its factorization.

133165426502623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 133165426502623 in words is "one hundred thirty-three trillion, one hundred sixty-five billion, four hundred twenty-six million, five hundred two thousand, six hundred twenty-three".