265265140251 has 4 divisors (see below), whose sum is σ = 353686853672. Its totient is φ = 176843426832.

The previous prime is 265265140237. The next prime is 265265140297. The reversal of 265265140251 is 152041562562.

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

It is not a de Polignac number, because 265265140251 - 2⁷ = 265265140123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265265140201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44210856706 + ... + 44210856711.

It is an arithmetic number, because the mean of its divisors is an integer number (88421713418).

Almost surely, 2^265265140251 is an apocalyptic number.

265265140251 is a deficient number, since it is larger than the sum of its proper divisors (88421713421).

265265140251 is an equidigital number, since it uses as much as digits as its factorization.

265265140251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88421713420.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 265265140251 in words is "two hundred sixty-five billion, two hundred sixty-five million, one hundred forty thousand, two hundred fifty-one".