2542165065 has 24 divisors (see below), whose sum is σ = 4807003968. Its totient is φ = 1232564640.

The previous prime is 2542165063. The next prime is 2542165069. The reversal of 2542165065 is 5605612452.

2542165065 is a `hidden beast` number, since 2 + 542 + 1 + 6 + 50 + 65 = 666.

It is not a de Polignac number, because 2542165065 - 2¹ = 2542165063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2542165061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2567349 + ... + 2568338.

It is an arithmetic number, because the mean of its divisors is an integer number (200291832).

Almost surely, 2^2542165065 is an apocalyptic number.

It is an amenable number.

2542165065 is a deficient number, since it is larger than the sum of its proper divisors (2264838903).

2542165065 is a wasteful number, since it uses less digits than its factorization.

2542165065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135709 (or 5135706 counting only the distinct ones).

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

The square root of 2542165065 is about 50419.8875940833. The cubic root of 2542165065 is about 1364.7965481903.

The spelling of 2542165065 in words is "two billion, five hundred forty-two million, one hundred sixty-five thousand, sixty-five".