135558343766 has 4 divisors (see below), whose sum is σ = 203337515652. Its totient is φ = 67779171882.

The previous prime is 135558343751. The next prime is 135558343771. The reversal of 135558343766 is 667343855531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 667343855531 = 636541 ⋅1048391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33889585940 + ... + 33889585943.

It is an arithmetic number, because the mean of its divisors is an integer number (50834378913).

Almost surely, 2^135558343766 is an apocalyptic number.

135558343766 is a deficient number, since it is larger than the sum of its proper divisors (67779171886).

135558343766 is an equidigital number, since it uses as much as digits as its factorization.

135558343766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67779171885.

The product of its digits is 27216000, while the sum is 56.

The spelling of 135558343766 in words is "one hundred thirty-five billion, five hundred fifty-eight million, three hundred forty-three thousand, seven hundred sixty-six".