65162005 has 4 divisors (see below), whose sum is σ = 78194412. Its totient is φ = 52129600.

The previous prime is 65161913. The next prime is 65162029. The reversal of 65162005 is 50026156.

65162005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42523441 + 22638564 = 6521^2 + 4758^2 .

It is not a de Polignac number, because 65162005 - 2¹¹ = 65159957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6516196 + ... + 6516205.

It is an arithmetic number, because the mean of its divisors is an integer number (19548603).

Almost surely, 2^65162005 is an apocalyptic number.

It is an amenable number.

65162005 is a deficient number, since it is larger than the sum of its proper divisors (13032407).

65162005 is a wasteful number, since it uses less digits than its factorization.

65162005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13032406.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 65162005 is about 8072.2986193525. The cubic root of 65162005 is about 402.4063385581.

The spelling of 65162005 in words is "sixty-five million, one hundred sixty-two thousand, five".