4448537465665 has 16 divisors (see below), whose sum is σ = 5342599609920. Its totient is φ = 3555927639360.

The previous prime is 4448537465653. The next prime is 4448537465693. The reversal of 4448537465665 is 5665647358444.

It is not a de Polignac number, because 4448537465665 - 2³¹ = 4446389982017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4448537465665.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50624547 + ... + 50712343.

It is an arithmetic number, because the mean of its divisors is an integer number (333912475620).

Almost surely, 2^{4448537465665} is an apocalyptic number.

It is an amenable number.

4448537465665 is a deficient number, since it is larger than the sum of its proper divisors (894062144255).

4448537465665 is a wasteful number, since it uses less digits than its factorization.

4448537465665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95952.

The product of its digits is 1161216000, while the sum is 67.

The spelling of 4448537465665 in words is "four trillion, four hundred forty-eight billion, five hundred thirty-seven million, four hundred sixty-five thousand, six hundred sixty-five".