265140500155 has 4 divisors (see below), whose sum is σ = 318168600192. Its totient is φ = 212112400120.

The previous prime is 265140500137. The next prime is 265140500161. The reversal of 265140500155 is 551005041562.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 265140500155 - 2¹³ = 265140491963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265140500155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26514050011 + ... + 26514050020.

It is an arithmetic number, because the mean of its divisors is an integer number (79542150048).

Almost surely, 2^265140500155 is an apocalyptic number.

265140500155 is a deficient number, since it is larger than the sum of its proper divisors (53028100037).

265140500155 is an equidigital number, since it uses as much as digits as its factorization.

265140500155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53028100036.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 265140500155 in words is "two hundred sixty-five billion, one hundred forty million, five hundred thousand, one hundred fifty-five".