155005565311263 has 8 divisors (see below), whose sum is σ = 209164136323968. Its totient is φ = 102092018919704.

The previous prime is 155005565311171. The next prime is 155005565311277. The reversal of 155005565311263 is 362113565500551.

155005565311263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155005565311263 - 2¹² = 155005565307167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155005565311063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311256154995 + ... + 311256155492.

It is an arithmetic number, because the mean of its divisors is an integer number (26145517040496).

Almost surely, 2^{155005565311263} is an apocalyptic number.

155005565311263 is a deficient number, since it is larger than the sum of its proper divisors (54158571012705).

155005565311263 is an equidigital number, since it uses as much as digits as its factorization.

155005565311263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622512310573.

The product of its (nonzero) digits is 2025000, while the sum is 48.

The spelling of 155005565311263 in words is "one hundred fifty-five trillion, five billion, five hundred sixty-five million, three hundred eleven thousand, two hundred sixty-three".