155244005105 has 8 divisors (see below), whose sum is σ = 212906064192. Its totient is φ = 106453032048.

The previous prime is 155244005099. The next prime is 155244005141. The reversal of 155244005105 is 501500442551.

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 155244005105 - 2⁶ = 155244005041 is a prime.

It is a super-2 number, since 2×155244005105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2217771467 + ... + 2217771536.

It is an arithmetic number, because the mean of its divisors is an integer number (26613258024).

Almost surely, 2^155244005105 is an apocalyptic number.

It is an amenable number.

155244005105 is a deficient number, since it is larger than the sum of its proper divisors (57662059087).

155244005105 is an equidigital number, since it uses as much as digits as its factorization.

155244005105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435543015.

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 155244005105 its reverse (501500442551), we get a palindrome (656744447656).

The spelling of 155244005105 in words is "one hundred fifty-five billion, two hundred forty-four million, five thousand, one hundred five".