260605155 has 32 divisors (see below), whose sum is σ = 451782144. Its totient is φ = 127766016.

The previous prime is 260605153. The next prime is 260605181. The reversal of 260605155 is 551506062.

It is not a de Polignac number, because 260605155 - 2¹ = 260605153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260605151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 919 + ... + 22848.

It is an arithmetic number, because the mean of its divisors is an integer number (14118192).

Almost surely, 2^260605155 is an apocalyptic number.

260605155 is a deficient number, since it is larger than the sum of its proper divisors (191176989).

260605155 is a wasteful number, since it uses less digits than its factorization.

260605155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23835.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 260605155 is about 16143.2696502289. The cubic root of 260605155 is about 638.7452262515.

The spelling of 260605155 in words is "two hundred sixty million, six hundred five thousand, one hundred fifty-five".