2605540030155 has 48 divisors (see below), whose sum is σ = 4638591045504. Its totient is φ = 1351988133120.

The previous prime is 2605540030139. The next prime is 2605540030157. The reversal of 2605540030155 is 5510300455062.

2605540030155 is a `hidden beast` number, since 2 + 60 + 5 + 540 + 0 + 3 + 0 + 1 + 55 = 666.

It is not a de Polignac number, because 2605540030155 - 2⁴ = 2605540030139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2605540030157) 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 47 ways as a sum of consecutive naturals, for example, 41338765 + ... + 41401745.

It is an arithmetic number, because the mean of its divisors is an integer number (96637313448).

Almost surely, 2^{2605540030155} is an apocalyptic number.

2605540030155 is a deficient number, since it is larger than the sum of its proper divisors (2033051015349).

2605540030155 is a wasteful number, since it uses less digits than its factorization.

2605540030155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87876 (or 87873 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 2605540030155 in words is "two trillion, six hundred five billion, five hundred forty million, thirty thousand, one hundred fifty-five".