260261155 has 64 divisors (see below), whose sum is σ = 405504000. Its totient is φ = 155675520.

The previous prime is 260261149. The next prime is 260261159. The reversal of 260261155 is 551162062.

It is not a de Polignac number, because 260261155 - 2²⁵ = 226706723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260261159) 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 63 ways as a sum of consecutive naturals, for example, 1307746 + ... + 1307944.

It is an arithmetic number, because the mean of its divisors is an integer number (6336000).

Almost surely, 2^260261155 is an apocalyptic number.

260261155 is a deficient number, since it is larger than the sum of its proper divisors (145242845).

260261155 is a wasteful number, since it uses less digits than its factorization.

260261155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 260261155 is about 16132.6115368839. The cubic root of 260261155 is about 638.4640536226.

The spelling of 260261155 in words is "two hundred sixty million, two hundred sixty-one thousand, one hundred fifty-five".