155120110101145 has 16 divisors (see below), whose sum is σ = 212743191329280. Its totient is φ = 106364555331264.

The previous prime is 155120110101137. The next prime is 155120110101161. The reversal of 155120110101145 is 541101011021551.

It is a cyclic number.

It is not a de Polignac number, because 155120110101145 - 2³ = 155120110101137 is a prime.

It is a super-2 number, since 2×155120110101145² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72263890 + ... + 74379499.

It is an arithmetic number, because the mean of its divisors is an integer number (13296449458080).

Almost surely, 2^{155120110101145} is an apocalyptic number.

It is an amenable number.

155120110101145 is a deficient number, since it is larger than the sum of its proper divisors (57623081228135).

155120110101145 is a wasteful number, since it uses less digits than its factorization.

155120110101145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146673624.

The product of its (nonzero) digits is 1000, while the sum is 28.

Adding to 155120110101145 its reverse (541101011021551), we get a palindrome (696221121122696).

The spelling of 155120110101145 in words is "one hundred fifty-five trillion, one hundred twenty billion, one hundred ten million, one hundred one thousand, one hundred forty-five".