65612445 has 16 divisors (see below), whose sum is σ = 109544832. Its totient is φ = 33471680.

The previous prime is 65612419. The next prime is 65612447. The reversal of 65612445 is 54421656.

It is not a de Polignac number, because 65612445 - 2⁶ = 65612381 is a prime.

It is a super-3 number, since 3×65612445³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65612447) 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, 94746 + ... + 95435.

It is an arithmetic number, because the mean of its divisors is an integer number (6846552).

Almost surely, 2^65612445 is an apocalyptic number.

It is an amenable number.

65612445 is a deficient number, since it is larger than the sum of its proper divisors (43932387).

65612445 is a wasteful number, since it uses less digits than its factorization.

65612445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190212.

The product of its digits is 28800, while the sum is 33.

The square root of 65612445 is about 8100.1509245199. The cubic root of 65612445 is about 403.3314372032.

The spelling of 65612445 in words is "sixty-five million, six hundred twelve thousand, four hundred forty-five".