265643005400445 has 64 divisors (see below), whose sum is σ = 428669094297600. Its totient is φ = 140467860149760.

The previous prime is 265643005400401. The next prime is 265643005400459. The reversal of 265643005400445 is 544004500346562.

It is not a de Polignac number, because 265643005400445 - 2²⁸ = 265642736964989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265643005400394 and 265643005400403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14221469616 + ... + 14221488294.

It is an arithmetic number, because the mean of its divisors is an integer number (6697954598400).

Almost surely, 2^{265643005400445} is an apocalyptic number.

It is an amenable number.

265643005400445 is a deficient number, since it is larger than the sum of its proper divisors (163026088897155).

265643005400445 is a wasteful number, since it uses less digits than its factorization.

265643005400445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35050.

The product of its (nonzero) digits is 6912000, while the sum is 48.

The spelling of 265643005400445 in words is "two hundred sixty-five trillion, six hundred forty-three billion, five million, four hundred thousand, four hundred forty-five".