265141237682765 has 8 divisors (see below), whose sum is σ = 320008615192728. Its totient is φ = 210886903497280.

The previous prime is 265141237682701. The next prime is 265141237682851. The reversal of 265141237682765 is 567286732141562.

It can be written as a sum of positive squares in 4 ways, for example, as 154410297325636 + 110730940357129 = 12426194^2 + 10522877^2 .

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

It is not a de Polignac number, because 265141237682765 - 2⁶ = 265141237682701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153260830166 + ... + 153260831895.

It is an arithmetic number, because the mean of its divisors is an integer number (40001076899091).

Almost surely, 2^{265141237682765} is an apocalyptic number.

It is an amenable number.

265141237682765 is a deficient number, since it is larger than the sum of its proper divisors (54867377509963).

265141237682765 is a wasteful number, since it uses less digits than its factorization.

265141237682765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306521662239.

The product of its digits is 203212800, while the sum is 65.

The spelling of 265141237682765 in words is "two hundred sixty-five trillion, one hundred forty-one billion, two hundred thirty-seven million, six hundred eighty-two thousand, seven hundred sixty-five".