155434440230211 has 8 divisors (see below), whose sum is σ = 219436856795664. Its totient is φ = 97527491909120.

The previous prime is 155434440230191. The next prime is 155434440230257. The reversal of 155434440230211 is 112032044434551.

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 155434440230211 - 2²³ = 155434431841603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155434440230211.

It is not an unprimeable number, because it can be changed into a prime (155434440210211) by changing a digit.

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, 1523867061030 + ... + 1523867061131.

It is an arithmetic number, because the mean of its divisors is an integer number (27429607099458).

Almost surely, 2^{155434440230211} is an apocalyptic number.

155434440230211 is a deficient number, since it is larger than the sum of its proper divisors (64002416565453).

155434440230211 is a wasteful number, since it uses less digits than its factorization.

155434440230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047734122181.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 155434440230211 its reverse (112032044434551), we get a palindrome (267466484664762).

The spelling of 155434440230211 in words is "one hundred fifty-five trillion, four hundred thirty-four billion, four hundred forty million, two hundred thirty thousand, two hundred eleven".