2420165565 has 48 divisors (see below), whose sum is σ = 4568054400. Its totient is φ = 1180642176.

The previous prime is 2420165551. The next prime is 2420165599. The reversal of 2420165565 is 5655610242.

It is not a de Polignac number, because 2420165565 - 2⁴ = 2420165549 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24009 + ... + 73598.

It is an arithmetic number, because the mean of its divisors is an integer number (95167800).

Almost surely, 2^2420165565 is an apocalyptic number.

It is an amenable number.

2420165565 is a deficient number, since it is larger than the sum of its proper divisors (2147888835).

2420165565 is a wasteful number, since it uses less digits than its factorization.

2420165565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97666 (or 97663 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 2420165565 is about 49195.1782698264. The cubic root of 2420165565 is about 1342.6053057643.

The spelling of 2420165565 in words is "two billion, four hundred twenty million, one hundred sixty-five thousand, five hundred sixty-five".