65081005 has 16 divisors (see below), whose sum is σ = 85520448. Its totient is φ = 47152000.

The previous prime is 65080963. The next prime is 65081011. The reversal of 65081005 is 50018056.

It is not a de Polignac number, because 65081005 - 2⁷ = 65080877 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 13350 + ... + 17560.

It is an arithmetic number, because the mean of its divisors is an integer number (5345028).

Almost surely, 2^65081005 is an apocalyptic number.

It is an amenable number.

65081005 is a deficient number, since it is larger than the sum of its proper divisors (20439443).

65081005 is a wasteful number, since it uses less digits than its factorization.

65081005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 65081005 is about 8067.2799009332. The cubic root of 65081005 is about 402.2395315948.

The spelling of 65081005 in words is "sixty-five million, eighty-one thousand, five".