155342443576321 has 8 divisors (see below), whose sum is σ = 162407588523264. Its totient is φ = 148303225767840.

The previous prime is 155342443576301. The next prime is 155342443576357. The reversal of 155342443576321 is 123675344243551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155342443576321 - 2¹³ = 155342443568129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155342443576301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6481772361 + ... + 6481796326.

It is an arithmetic number, because the mean of its divisors is an integer number (20300948565408).

Almost surely, 2^{155342443576321} is an apocalyptic number.

It is an amenable number.

155342443576321 is a deficient number, since it is larger than the sum of its proper divisors (7065144946943).

155342443576321 is a wasteful number, since it uses less digits than its factorization.

155342443576321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12963569231.

The product of its digits is 36288000, while the sum is 55.

The spelling of 155342443576321 in words is "one hundred fifty-five trillion, three hundred forty-two billion, four hundred forty-three million, five hundred seventy-six thousand, three hundred twenty-one".