255012211020155 has 16 divisors (see below), whose sum is σ = 306148002007584. Its totient is φ = 203920872053760.

The previous prime is 255012211020143. The next prime is 255012211020163. The reversal of 255012211020155 is 551020112210552.

It is not a de Polignac number, because 255012211020155 - 2²⁰ = 255012209971579 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384963157 + ... + 1385147273.

It is an arithmetic number, because the mean of its divisors is an integer number (19134250125474).

Almost surely, 2^{255012211020155} is an apocalyptic number.

255012211020155 is a deficient number, since it is larger than the sum of its proper divisors (51135790987429).

255012211020155 is a wasteful number, since it uses less digits than its factorization.

255012211020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303326.

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 255012211020155 in words is "two hundred fifty-five trillion, twelve billion, two hundred eleven million, twenty thousand, one hundred fifty-five".