265530361032381 has 16 divisors (see below), whose sum is σ = 372688310016000. Its totient is φ = 167697032323248.

The previous prime is 265530361032361. The next prime is 265530361032389. The reversal of 265530361032381 is 183230163035562.

It is not a de Polignac number, because 265530361032381 - 2⁹ = 265530361031869 is a prime.

It is a super-2 number, since 2×265530361032381² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 265530361032381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265530361032389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86726391 + ... + 89735876.

It is an arithmetic number, because the mean of its divisors is an integer number (23293019376000).

Almost surely, 2^{265530361032381} is an apocalyptic number.

It is an amenable number.

265530361032381 is a deficient number, since it is larger than the sum of its proper divisors (107157948983619).

265530361032381 is a wasteful number, since it uses less digits than its factorization.

265530361032381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176488688.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 265530361032381 in words is "two hundred sixty-five trillion, five hundred thirty billion, three hundred sixty-one million, thirty-two thousand, three hundred eighty-one".