155045318055 has 32 divisors (see below), whose sum is σ = 258884550144. Its totient is φ = 79087552896.

The previous prime is 155045318041. The next prime is 155045318089. The reversal of 155045318055 is 550813540551.

It is not a de Polignac number, because 155045318055 - 2⁵ = 155045318023 is a prime.

It is a super-2 number, since 2×155045318055² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155045317998 and 155045318016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4947897 + ... + 4979133.

It is an arithmetic number, because the mean of its divisors is an integer number (8090142192).

Almost surely, 2^155045318055 is an apocalyptic number.

155045318055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155045318055 is a deficient number, since it is larger than the sum of its proper divisors (103839232089).

155045318055 is a wasteful number, since it uses less digits than its factorization.

155045318055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45655.

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 155045318055 in words is "one hundred fifty-five billion, forty-five million, three hundred eighteen thousand, fifty-five".