155343212005 has 8 divisors (see below), whose sum is σ = 192425140224. Its totient is φ = 120265712400.

The previous prime is 155343211987. The next prime is 155343212029. The reversal of 155343212005 is 500212343551.

155343212005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 155343212005 - 2⁹ = 155343211493 is a prime.

It is a super-2 number, since 2×155343212005² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501106981 + ... + 501107290.

It is an arithmetic number, because the mean of its divisors is an integer number (24053142528).

Almost surely, 2^155343212005 is an apocalyptic number.

It is an amenable number.

155343212005 is a deficient number, since it is larger than the sum of its proper divisors (37081928219).

155343212005 is a wasteful number, since it uses less digits than its factorization.

155343212005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002214307.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 155343212005 its reverse (500212343551), we get a palindrome (655555555556).

The spelling of 155343212005 in words is "one hundred fifty-five billion, three hundred forty-three million, two hundred twelve thousand, five".