155045028185883 has 96 divisors (see below), whose sum is σ = 253697010508032. Its totient is φ = 93842497382400.

The previous prime is 155045028185819. The next prime is 155045028185939. The reversal of 155045028185883 is 388581820540551.

155045028185883 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 45 + 0 + 2 + 8 + 1 + 8 + 588 + 3 = 666.

It is not a de Polignac number, because 155045028185883 - 2⁶ = 155045028185819 is a prime.

It is a super-2 number, since 2×155045028185883² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155045028185883.

It is not an unprimeable number, because it can be changed into a prime (155045028185083) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 18561593835 + ... + 18561602187.

It is an arithmetic number, because the mean of its divisors is an integer number (2642677192792).

Almost surely, 2^{155045028185883} is an apocalyptic number.

155045028185883 is a deficient number, since it is larger than the sum of its proper divisors (98651982322149).

155045028185883 is an equidigital number, since it uses as much as digits as its factorization.

155045028185883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16727 (or 16715 counting only the distinct ones).

The product of its (nonzero) digits is 61440000, while the sum is 63.

The spelling of 155045028185883 in words is "one hundred fifty-five trillion, forty-five billion, twenty-eight million, one hundred eighty-five thousand, eight hundred eighty-three".