155442035012 has 24 divisors (see below), whose sum is σ = 296913798720. Its totient is φ = 70617179360.

The previous prime is 155442034987. The next prime is 155442035033. The reversal of 155442035012 is 210530244551.

It is a self number, because there is not a number n which added to its sum of digits gives 155442035012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875087 + ... + 1037622.

It is an arithmetic number, because the mean of its divisors is an integer number (12371408280).

Almost surely, 2^155442035012 is an apocalyptic number.

It is an amenable number.

155442035012 is a deficient number, since it is larger than the sum of its proper divisors (141471763708).

155442035012 is a wasteful number, since it uses less digits than its factorization.

155442035012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914571 (or 1914569 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 155442035012 its reverse (210530244551), we get a palindrome (365972279563).

The spelling of 155442035012 in words is "one hundred fifty-five billion, four hundred forty-two million, thirty-five thousand, twelve".