155013342422045 has 4 divisors (see below), whose sum is σ = 186016010906460. Its totient is φ = 124010673937632.

The previous prime is 155013342422017. The next prime is 155013342422051. The reversal of 155013342422045 is 540224243310551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23807978352964 + 131205364069081 = 4879342^2 + 11454491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155013342422045 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155013342421993 and 155013342422011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15501334242200 + ... + 15501334242209.

It is an arithmetic number, because the mean of its divisors is an integer number (46504002726615).

Almost surely, 2^{155013342422045} is an apocalyptic number.

It is an amenable number.

155013342422045 is a deficient number, since it is larger than the sum of its proper divisors (31002668484415).

155013342422045 is an equidigital number, since it uses as much as digits as its factorization.

155013342422045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31002668484414.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 155013342422045 its reverse (540224243310551), we get a palindrome (695237585732596).

The spelling of 155013342422045 in words is "one hundred fifty-five trillion, thirteen billion, three hundred forty-two million, four hundred twenty-two thousand, forty-five".