155111110145 has 8 divisors (see below), whose sum is σ = 187366004160. Its totient is φ = 123267106800.

The previous prime is 155111110139. The next prime is 155111110151. The reversal of 155111110145 is 541011111551.

It is an interprime number because it is at equal distance from previous prime (155111110139) and next prime (155111110151).

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

It is not a de Polignac number, because 155111110145 - 2⁴ = 155111110129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102721835 + ... + 102723344.

It is an arithmetic number, because the mean of its divisors is an integer number (23420750520).

Almost surely, 2^155111110145 is an apocalyptic number.

It is an amenable number.

155111110145 is a deficient number, since it is larger than the sum of its proper divisors (32254894015).

155111110145 is a wasteful number, since it uses less digits than its factorization.

155111110145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205445335.

The product of its (nonzero) digits is 500, while the sum is 26.

Adding to 155111110145 its reverse (541011111551), we get a palindrome (696122221696).

The spelling of 155111110145 in words is "one hundred fifty-five billion, one hundred eleven million, one hundred ten thousand, one hundred forty-five".