155434440013331 has 8 divisors (see below), whose sum is σ = 155995993737360. Its totient is φ = 154872889301088.

The previous prime is 155434440013297. The next prime is 155434440013339. The reversal of 155434440013331 is 133310044434551.

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 155434440013331 - 2³⁴ = 155417260144147 is a prime.

It is a super-2 number, since 2×155434440013331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155434440013339) 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, 187413560 + ... + 188241098.

It is an arithmetic number, because the mean of its divisors is an integer number (19499499217170).

Almost surely, 2^{155434440013331} is an apocalyptic number.

155434440013331 is a deficient number, since it is larger than the sum of its proper divisors (561553724029).

155434440013331 is an equidigital number, since it uses as much as digits as its factorization.

155434440013331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505893.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 155434440013331 its reverse (133310044434551), we get a palindrome (288744484447882).

The spelling of 155434440013331 in words is "one hundred fifty-five trillion, four hundred thirty-four billion, four hundred forty million, thirteen thousand, three hundred thirty-one".