265241021020463 has 4 divisors (see below), whose sum is σ = 265262323821528. Its totient is φ = 265219718219400.

The previous prime is 265241021020439. The next prime is 265241021020471. The reversal of 265241021020463 is 364020120142562.

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

It is a cyclic number.

It is not a de Polignac number, because 265241021020463 - 2¹⁴ = 265241021004079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265241021020433) 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, 10651381856 + ... + 10651406757.

It is an arithmetic number, because the mean of its divisors is an integer number (66315580955382).

Almost surely, 2^{265241021020463} is an apocalyptic number.

265241021020463 is a deficient number, since it is larger than the sum of its proper divisors (21302801065).

265241021020463 is a wasteful number, since it uses less digits than its factorization.

265241021020463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21302801064.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 265241021020463 in words is "two hundred sixty-five trillion, two hundred forty-one billion, twenty-one million, twenty thousand, four hundred sixty-three".