155133343311442 has 16 divisors (see below), whose sum is σ = 248568678149112. Its totient is φ = 72357873817600.

The previous prime is 155133343311439. The next prime is 155133343311469. The reversal of 155133343311442 is 244113343331551.

It can be written as a sum of positive squares in 4 ways, for example, as 63410181228601 + 91723162082841 = 7963051^2 + 9577221^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20189135059 + ... + 20189142742.

Almost surely, 2^{155133343311442} is an apocalyptic number.

155133343311442 is a deficient number, since it is larger than the sum of its proper divisors (93435334837670).

155133343311442 is a wasteful number, since it uses less digits than its factorization.

155133343311442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40378277933.

The product of its digits is 777600, while the sum is 43.

Adding to 155133343311442 its reverse (244113343331551), we get a palindrome (399246686642993).

The spelling of 155133343311442 in words is "one hundred fifty-five trillion, one hundred thirty-three billion, three hundred forty-three million, three hundred eleven thousand, four hundred forty-two".