65964081 has 8 divisors (see below), whose sum is σ = 90329344. Its totient is φ = 42787440.

The previous prime is 65964079. The next prime is 65964091. The reversal of 65964081 is 18046956.

65964081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65964081 - 2¹ = 65964079 is a prime.

It is a super-2 number, since 2×65964081² = 8702519964349122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65964011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 297025 + ... + 297246.

It is an arithmetic number, because the mean of its divisors is an integer number (11291168).

Almost surely, 2^65964081 is an apocalyptic number.

It is an amenable number.

65964081 is a deficient number, since it is larger than the sum of its proper divisors (24365263).

65964081 is a wasteful number, since it uses less digits than its factorization.

65964081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594311.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 65964081 is about 8121.8274421463. The cubic root of 65964081 is about 404.0506769909.

The spelling of 65964081 in words is "sixty-five million, nine hundred sixty-four thousand, eighty-one".