135566333403 has 4 divisors (see below), whose sum is σ = 180755111208. Its totient is φ = 90377555600.

The previous prime is 135566333351. The next prime is 135566333459. The reversal of 135566333403 is 304333665531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135566333403 - 2⁶ = 135566333339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135566333473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22594388898 + ... + 22594388903.

It is an arithmetic number, because the mean of its divisors is an integer number (45188777802).

Almost surely, 2^135566333403 is an apocalyptic number.

135566333403 is a deficient number, since it is larger than the sum of its proper divisors (45188777805).

135566333403 is an equidigital number, since it uses as much as digits as its factorization.

135566333403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45188777804.

The product of its (nonzero) digits is 874800, while the sum is 42.

Adding to 135566333403 its reverse (304333665531), we get a palindrome (439899998934).

The spelling of 135566333403 in words is "one hundred thirty-five billion, five hundred sixty-six million, three hundred thirty-three thousand, four hundred three".