155043654238 has 16 divisors (see below), whose sum is σ = 259105837824. Its totient is φ = 68974932760.

The previous prime is 155043654193. The next prime is 155043654257. The reversal of 155043654238 is 832456340551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74971720 + ... + 74973787.

It is an arithmetic number, because the mean of its divisors is an integer number (16194114864).

Almost surely, 2^155043654238 is an apocalyptic number.

155043654238 is a deficient number, since it is larger than the sum of its proper divisors (104062183586).

155043654238 is a wasteful number, since it uses less digits than its factorization.

155043654238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149945567.

The product of its (nonzero) digits is 1728000, while the sum is 46.

Adding to 155043654238 its reverse (832456340551), we get a palindrome (987499994789).

The spelling of 155043654238 in words is "one hundred fifty-five billion, forty-three million, six hundred fifty-four thousand, two hundred thirty-eight".