265643155464013 has 8 divisors (see below), whose sum is σ = 265690885154688. Its totient is φ = 265595427183744.

The previous prime is 265643155463927. The next prime is 265643155464053. The reversal of 265643155464013 is 310464551346562.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265643155464013 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 (265643155464053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421255756 + ... + 421885882.

It is an arithmetic number, because the mean of its divisors is an integer number (33211360644336).

Almost surely, 2^{265643155464013} is an apocalyptic number.

It is an amenable number.

265643155464013 is a deficient number, since it is larger than the sum of its proper divisors (47729690675).

265643155464013 is an equidigital number, since it uses as much as digits as its factorization.

265643155464013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705203.

The product of its (nonzero) digits is 31104000, while the sum is 55.

The spelling of 265643155464013 in words is "two hundred sixty-five trillion, six hundred forty-three billion, one hundred fifty-five million, four hundred sixty-four thousand, thirteen".