65626643 has 8 divisors (see below), whose sum is σ = 68006400. Its totient is φ = 63285768.

The previous prime is 65626633. The next prime is 65626661. The reversal of 65626643 is 34662656.

65626643 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 a cyclic number.

It is not a de Polignac number, because 65626643 - 2¹⁶ = 65561107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65626597 and 65626606.

It is not an unprimeable number, because it can be changed into a prime (65626633) 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, 6263 + ... + 13056.

It is an arithmetic number, because the mean of its divisors is an integer number (8500800).

Almost surely, 2^65626643 is an apocalyptic number.

65626643 is a deficient number, since it is larger than the sum of its proper divisors (2379757).

65626643 is a wasteful number, since it uses less digits than its factorization.

65626643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19441.

The product of its digits is 155520, while the sum is 38.

The square root of 65626643 is about 8101.0272805367. The cubic root of 65626643 is about 403.3605276536.

The spelling of 65626643 in words is "sixty-five million, six hundred twenty-six thousand, six hundred forty-three".