155043438329 has 32 divisors (see below), whose sum is σ = 173245298688. Its totient is φ = 137854080000.

The previous prime is 155043438283. The next prime is 155043438337. The reversal of 155043438329 is 923834340551.

It is not a de Polignac number, because 155043438329 - 2¹² = 155043434233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155043438349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11782904 + ... + 11796054.

It is an arithmetic number, because the mean of its divisors is an integer number (5413915584).

Almost surely, 2^155043438329 is an apocalyptic number.

It is an amenable number.

155043438329 is a deficient number, since it is larger than the sum of its proper divisors (18201860359).

155043438329 is a wasteful number, since it uses less digits than its factorization.

155043438329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 155043438329 in words is "one hundred fifty-five billion, forty-three million, four hundred thirty-eight thousand, three hundred twenty-nine".