65036081 has 16 divisors (see below), whose sum is σ = 72990720. Its totient is φ = 57437520.

The previous prime is 65036077. The next prime is 65036087. The reversal of 65036081 is 18063056.

It is a cyclic number.

It is not a de Polignac number, because 65036081 - 2² = 65036077 is a prime.

It is a super-2 number, since 2×65036081² = 8459383663677122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65036087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169616 + ... + 169998.

It is an arithmetic number, because the mean of its divisors is an integer number (4561920).

Almost surely, 2^65036081 is an apocalyptic number.

It is an amenable number.

65036081 is a deficient number, since it is larger than the sum of its proper divisors (7954639).

65036081 is a wasteful number, since it uses less digits than its factorization.

65036081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 65036081 is about 8064.4950864887. The cubic root of 65036081 is about 402.1469578956.

The spelling of 65036081 in words is "sixty-five million, thirty-six thousand, eighty-one".